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BrownBear
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Set it & Forget it Grow Tent 2
#27026524 - 11/07/20 10:29 AM (3 years, 2 months ago) |
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Set it & Forget it Grow Tent
Material:
- 5'x5' grow tent
- 40 gallon commander tub
- 10 head ultrasonic mist maker
- float valve
- humidistat
- RO filtration system
- portable ac unit
- analog repeat cycle timer
Most of the materials that I am using are being repurposed from my bud growing adventures. The only peices of material that I purchased specifically for this build was a $12 float valve and a $89 ten head ultrasonic mist maker.
I bought this ro system for filling my nutrient reservoirs. You want to only fill the tub with filtrated water or you will have to replace the atomizer's more often.

The ultrasonic mist maker sits on the bottom of the tub. I simply found the best water level to get the most mist and then placed the float valve at that level. I never have to worry about having to refill my reservoir. It refills itself.

I cut a hole into the lid of the commander tub. Then I screwed the flat end of a 6" duct connector to the lid directly over top of the hole. I attached a 6" inline fan to the duct connector and attached a flex hose to the fan. I fed the hose in through the top of the tent and zip tied it and positioned it to pump mist toward the center of the tent.

I already had a portable ac unit so that is what I used for this build. I'm sure you could use another type of fan to do the same thing. I also already had the duct boot attached to the ac unit with the duct hose attached to that for when I pumped cool air into my flowering tent. For this setup I am only using the fan and not the ac. My basement stays between 68 and 72 degrees pretty much all year round.

I bought this humidistat for my bud drying tent. I would have an inline fan sitting on a carbon filter and plugged into the humidistat. I had the humidistat set to turn the fan on when the humidity in the tent would reach 65% and would cut off when it dropped below 60%. It would dry the bud perfectly in 7 days with no need to cure. I would then simply put the bud in mason jars with a humidipak. Never had to burp jars ever.
Anyway I have now repurposed this humidistat to regulate humidty in my mushroom grow tent. The inline fan turns on when the humidity drops below 88% and turns off when it reaches 92%.

I got the idea of the forced intake/ passive exhaust design from a poster on mycotopia who said, "The opppsite of growing MJ". Which is passive intake/forced exhaust. I actually pumped cool air in through the bottom which kept my under the flood table nutrient reservoirs nice and cool and had an inline fan pulling air out and through a 6" carbon filter.

I now use this analog interval timer. I can dial it in for my specific needs.

I set the analog interval timer for 1 minute on/19 minutes off cycles. So the mushrooms affectively receive 3 FAE's per hour. The rh stays between 88 and 92% except when the intake fan (portable ac unit) is on. When the intake fan is on the rh drops to around 80% but quickly climbs back into range after the fan turns off.
This is how I grew all of these wonderful canopies.


Edited by BrownBear (07/13/21 10:55 PM)
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Harry Manbach
Lock the door,Kill the light


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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27033384 - 11/11/20 12:46 PM (3 years, 2 months ago) |
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Can't wait for the update on cleaning day! I've yet to automate that myself!
Looks like the start of a nice setup! I'd suggest looking into pvc exhaust/intake pipe. I've yet to replace my exhaust, but you lose a lot of airflow with those corrugated pipes!....plus the exhaust is IMPOSSIBLE to clean completely!
Edited by Harry Manbach (11/11/20 12:49 PM)
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Harry Manbach
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Personally I like pulling negative pressure with my exhaust,that way fresh air leaks in rather than humidity leaking out! I still use a slight intake pressure(to push fog in) but exhaust is much higher
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BrownBear
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Quote:
Harry Manbach said: Can't wait for the update on cleaning day! I've yet to automate that myself!
Looks like the start of a nice setup! I'd suggest looking into pvc exhaust/intake pipe. I've yet to replace my exhaust, but you lose a lot of airflow with those corrugated pipes!....plus the exhaust is IMPOSSIBLE to clean completely!
No doubt. cleaning is a bitch. Even tubs and jars need to be sanitized though. There is just no way of getting around it.
I can rig up some pvc piping with no problem. Thank you for the suggestion.
Quote:
Harry Manbach said: Personally I like pulling negative pressure with my exhaust,that way fresh air leaks in rather than humidity leaking out! I still use a slight intake pressure(to push fog in) but exhaust is much higher

Is that a filter of some sort attached to the reservoir?
I think I will stick with my design and see how it works out but your setup is pretty sweet.
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DrunkMountainDude
TheGuyYouCallWhenUrStuckInThaMud



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Re: Set it & Forget it Grow Tent *DELETED* [Re: BrownBear] 1
#27034134 - 11/11/20 08:11 PM (3 years, 2 months ago) |
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Post deleted by DrunkMountainDude
Reason for deletion: I felt rude that I asked a question about my setup so soon when hes trying to show us HIS/HER setup
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Harry Manbach
Lock the door,Kill the light


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Yessir it's a filter..you better believe it!! Panty hose wrapped over a 4" inline duct booster! Lol Had I not been investing money/time into framing my new lab when my previous humidity set up failed..fortunately I had an extra $25 variable inline booster ...so two hours later after a trip to the hardware store..you see the results!!
It works great seeing how my exhaust and intake fans are the same exact thing and it's easy to know where I stand.
In fairness,the waterproof inline fans,which appears to be what you's gots there, were on the "to do" list before the switch...definitely have been expedited as back ups for both intake/exhaust...I'd love to plumb pvc out of the existing hole and be able to hose/clean the entire exhaust,fan and all!
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Harry Manbach
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By far yours seems better,to me at least, just suggesting the ease of a smooth pipe for cleaning ease in the future.
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27099220 - 12/20/20 11:55 AM (3 years, 1 month ago) |
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This is an update. May still need to dial in for maximum fae but so far so good. The tubs I spawned 12/5 and 12/6 are all pinning. The automated tent has been able to maintain all proper growth parameters except idk about the co2 level because I have no way to monitor it. I haven't seen any signs of inefficient fae so far though. I'll just make changes as I need to.
I want to build a replica of this grow tent for my gourmet mushrooms now. I have another portable ac but I will have to buy everything else because I do not own another tent, shelves, lights nor ultrasonic mister. It will have to wait until after the holidays.
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 3
#27135600 - 01/08/21 03:56 PM (3 years, 19 days ago) |
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So I believe I have my grow tent well dialed in now.
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Puduwoke
mushroom enthusiastic

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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27143781 - 01/12/21 12:31 PM (3 years, 15 days ago) |
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Those trays look amazing.
First of I want to say. No need to worry about fae when it comes to cubes, almost atleast.
They require so low fae compared to most gourmets its insane.
Why have such a big tent if only growing cubes? Atleast it's the only mushroom you mentioned.
Secondly. Why plastic over the trays? Me and tons of people just use the lids you got underneath? No need to modify it or anything.
I built my greenhouse before ever having success with a monotub so I feel you. But seems strange all that equipment and work when you could of use dubtub if all you want to grow is cubensis?
--------------------
Trade List LAGM2021
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: Puduwoke] 1
#27144684 - 01/12/21 09:02 PM (3 years, 14 days ago) |
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Thanks. Those last set of tubs were from a few weeks of dialing in the tent. The substrate is sitting in 15 qt tubs. There is no plastic covering at all. As far as the size of the tent. I just used materials I already had lying around from past projects.
I can grow in monotubs just fine or atleast I could when I was growing a few years ago. I think dubtubs are a little outdated but I am sure they would still work just fine. I mean, honestly I could have just stacked a bunch of 66 qt tubs in my 5x5 tent and called it a day but where is the fun in that?
I plan on buying a 4' x 8' tent for my gourmet project. I just need to source the materials and source the cultures. I have been looking at mossy creek for the cultures but I just haven't pulled the trigger yet.
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Jarhead3521
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27148675 - 01/14/21 09:12 PM (3 years, 12 days ago) |
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Nothing to input just want this on my thread list
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S.Crispa
Spore Lord



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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27153832 - 01/17/21 04:27 PM (3 years, 10 days ago) |
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Quote:
Iambrownbear said: Thanks. Those last set of tubs were from a few weeks of dialing in the tent. The substrate is sitting in 15 qt tubs. There is no plastic covering at all. As far as the size of the tent. I just used materials I already had lying around from past projects.
I can grow in monotubs just fine or atleast I could when I was growing a few years ago. I think dubtubs are a little outdated but I am sure they would still work just fine. I mean, honestly I could have just stacked a bunch of 66 qt tubs in my 5x5 tent and called it a day but where is the fun in that?
I plan on buying a 4' x 8' tent for my gourmet project. I just need to source the materials and source the cultures. I have been looking at mossy creek for the cultures but I just haven't pulled the trigger yet.
I am using a 4x8 grow tent (grow tent is laying on its side so its longer than it is tall) as a fruiting chamber at the moment and have been coming into some issues. I think it has something to do with the excess humidity and contams in my house. I use 53qt unmodified monotubs (5qts spawn, 650g coir (dry), 400ml dry verm). My tek worked really really in tubs so I though creating a proper fruiting chamber with the grow tent would up my game. Once my primordia is established and it's pin-city (10-12 days) I have been taking the lids off and let them go to town in the tent at about 92% humidity.
And...
I have been getting less flushes due to constant attacks of trich. I have since reduced humidity in the tent and gone back to keeping lids on the tubs. I have been thinking about putting an HEPA air purifier in the tent and in my lab-room. Anyone think this is a good idea or has better advice?
I was so exicted about this grow tent but it has only caused issues rather than results. Any advice to up my game?
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: S.Crispa] 1
#27153890 - 01/17/21 05:05 PM (3 years, 10 days ago) |
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I would turn the tent up right. With less head space its probably creating stagnant air pockets. If I was using a 4x8 for cubes I would use those 36" long by 18" wide 4 tier plastic shelves. You can fit 3 15 qt tubs on each shelf. I'm not sure how many 53 qt tubs you could fit on each shelf though. You would have to figure that out. But you can fit four of those shelving units in a 4x8.
The most important part of fruiting is to provide as much air movement/ air exchange as you can while maintaining proper humidity. You can accomplish this by having a humidistat which allows you to maintain the proper rh.
You also want forced intake and passive exhaust in order to keep as much humidity as you can in the tent while the intake fan is running but also allowing the stagnant air to escape. I use a portable ac unit to pump in the air and use the small opening at the top of the tent for ventilation. I have switched over to an anolog repeat cycle timer that runs the intake fan for 1 minute on and 5 minutes off cycles. I would have as many spots open at the top of a 4x8 as I could get away with without losing too much rh.
Check out the op if you haven't yet. I explain exactly how to build it. The most important aspects of growing mushrooms instead of contaminations is to have clean spawn and plenty of fresh air.
I hope this is the type of info that you were looking for.
Edited by BrownBear (01/17/21 05:11 PM)
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S.Crispa
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27153932 - 01/17/21 05:27 PM (3 years, 10 days ago) |
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Thanks for the input. I always have clean spawn so perhaps the issue is not enough air flow. More on my setup...
I'm running inkbirds for temp/humidity and have a small space heater (temp) and a reptile fogger & small fan to keep my RH up. I'm using an the inline blower fan that came with the growtent for FAE. This is set up to blow air into the tent (pos airflow) with passive exhaust. I block my exhaust vents with polyfill for some filtration. I am using the carbon filter on the inline intake as added filtration, but I don't know if this is adequate or necessary since this is backwards from how you'd have a weed grow set up (don't know if carbon filters work on the intake).
I assume I'm getting contams (trichoderma) after my first flush because humidity is too high and not enough FAE. Is that what you're suggesting?
I can get 6 53qt monotubs in my tent with the current set up. If I put lids on the tubs I can stack them one-high for 12x total. I have never put more than six in at a time.
Before my contam issues I was harvesting about 120g (dry weight) every first flush with my current strains (Puerto Ricans & Mazapatec). I was harvesting about 300g per tote off 2-3 flushes. My BE was averaging about 60-70%
My last three harvests my BE has fallen to about 25-35%. A considerable drop in production.
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: S.Crispa] 1
#27154160 - 01/17/21 07:58 PM (3 years, 9 days ago) |
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With the tent setup on its side it would give you a low ceiling and couple that with a deep tub and yea, it could definitely create an environment condusive to contamination. Do your substrates feel overly saturated? I had a tub trich out on me after the first flush and the substrate was overly saturated. It has been the only tub so far to trich out on me. All other subs have been on the dry side after the first flush.
With the setup I described in my last post you could have 16 53 qt tubs in that tent without stacking them. You could fit 48 15 qt tubs in that same tent without stacking them.
Edited by BrownBear (01/17/21 08:02 PM)
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S.Crispa
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27154231 - 01/17/21 08:46 PM (3 years, 9 days ago) |
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Quote:
Iambrownbear said: With the tent setup on its side it would give you a low ceiling and couple that with a deep tub and yea, it could definitely create an environment condusive to contamination. Do your substrates feel overly saturated? I had a tub trich out on me after the first flush and the substrate was overly saturated. It has been the only tub so far to trich out on me. All other subs have been on the dry side after the first flush.
With the setup I described in my last post you could have 16 53 qt tubs in that tent without stacking them. You could fit 48 15 qt tubs in that same tent without stacking them.
I think my substrates are def on the wet side, even though they are at FC when I start my tubs. I'll have to experiment on that one.
As far as the orientation of my tent - I'll need to experiment with that as well. I'm in an apartment and have the tent set up across two six foot tables with a large piece of plywood bridging the two. It gives me tons of storage space under the tables for tubs and bins that I otherwise wouldn't have. I hesitate to flip it upright cuz the room feels so dialed. I think that will be my last adjustment if I have to - but thanks for the input iambrownbear. I'll keep everone posted on the progress and share some pics here soon.
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: S.Crispa] 1
#27154289 - 01/17/21 09:10 PM (3 years, 9 days ago) |
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Yes. Please post any updates. Perhaps you just need to cut back on the water in your sub a little and increase fae.
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MuShroomLords
Avid Listener And Helper.

Registered: 03/12/19
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Hello good Sir! Thanks for all the great info. Curious on do you draw clean air from the top to bottom or bottom to top? And how long do you run your fan for? Thank you!
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BrownBear
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I have a flex hose attached to a portable ac unit (fan only) that blows air into the tent from the bottom. The hose is fixed to blow the air straight up. The humidity is is pumped in downward through the top. The ac unit cycles 1 minute on/19 minutes off. This effectively exchanges the air in the tent 3 times per hour.
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S.Crispa
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27191611 - 02/07/21 12:18 PM (2 years, 11 months ago) |
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I have some updates regarding the adjustments I made to my FAE & moisture content of my substrate:
GROW TENT: I programed my fan timer to run 30min every 3hours. I also pulled my fogger off it's humidity controller and run it off my fan timer. Both the fans and fogger run at once now. I also put a small fan on the bottom of the tent set on low to circulate the low laying air. All of these adjustments have seemed to help with FAE, but I am still fiddling with the amount of fog / fan speed to get it just right. Tying to keep RH% in the tent at 90-92%.
SUBSTRATE: I reduced the amount of water I use in my substrate to 3L. I am seeing HUGE results in the reduction of water in my mix. I have not been cursed with any trich since I've made these adjustments. Substrate mix is as follows:
650g Coir 3L Water 400ml Verm 1/4 cup gypsum
LAST: I put one of those HEPA filters in my mushROOM as added defense against contams. I think this has also helped, I'm sure.
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MuShroomLords
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27192578 - 02/07/21 08:37 PM (2 years, 11 months ago) |
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Thank you for your prompt response! We appreciate you. Did you use a casing layer on any of your colonized substrate? And if so what was it made with? Ex:Coco coir, verm, coffee, etc. Thank you so much.
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BrownBear
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S. Crispa, looks like you are on your way to having that tent rocking. No need to have lids on any of the tubs as long as conditions are kept ideal.
MuShroomLords, I use around 1 qt of hydrated coir that I add as a top layer at spawning. I do not use any additives. My substrate consists of coir, shredded corncob and water. I mostly use popcorn and rice for spawn.
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Seeker604


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Loc: United States
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27251199 - 03/13/21 11:32 AM (2 years, 10 months ago) |
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Quote:
Iambrownbear said:I plan on buying a 4' x 8' tent for my gourmet project. I just need to source the materials and source the cultures. I have been looking at mossy creek for the cultures but I just haven't pulled the trigger yet.
Hi Bear,
If you need cultures, I currently have 3 jars of LC for the following species that I can send you a syringe or two from: King Trumpet Oyster, Blue Oyster, and Pioppino. Let me know if any of those species are of interest to you.
The Pioppino is from an agar plate purchased from North Spore, and the rest are from Lenny at Mycelium Emporium.
Peace & Light, S604
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Seeker604


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Re: Set it & Forget it Grow Tent [Re: S.Crispa] 1
#27251206 - 03/13/21 11:34 AM (2 years, 10 months ago) |
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S.Crispa,
What brand of ultrasonic humidifier are you using? The one I'm currently using is a desktop model and I'm having issues with it. Yours look ideal for my current tent/setup.
Peace & Light, S604
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: Seeker604] 1
#27251280 - 03/13/21 12:34 PM (2 years, 10 months ago) |
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Thank you for the offer. While mossy creek is a straight joke of a company, I have been able source cultures from elsewhere.
I bought my first 10 head ultrasonic mist maker from ebay for $90. I have recently stopped using ebay because they're sellers are lazy and ebay cares more about their sellers than they do for their customers. I paid a little more on amazon for my second ultrasonic but it was well worth the little extra.
https://www.amazon.com/Happybuy-Transformer-Accessories-Agriculture-Hydroponics/dp/B08P5KZL63/ref=mp_s_a_1_5?dchild=1&keywords=10+head+ultrasonic+mist+maker+fogger&qid=1615662909&sprefix=10+head+ultrasonic+&sr=8-5
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Shiro
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Re: Set it & Forget it Grow Tent [Re: S.Crispa] 1
#27254642 - 03/15/21 07:51 PM (2 years, 10 months ago) |
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You mention using a heater and also have trich issues. It’s cool as long as you keep it (outside) your tent. Heat the environment your tent sits in. Not the inside of the tent.
-------------------- Let’s cultivate Agarikon!
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: Shiro] 1
#27254671 - 03/15/21 08:14 PM (2 years, 10 months ago) |
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????? I don't use a heater and I don't have any contamination issues. Someone else mentioned in this thread that they were having trich contam issues but it wasn't me.
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Shiro
Padwon



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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27366119 - 06/28/21 10:44 AM (2 years, 6 months ago) |
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So I see the bags in your tubs, immediately after bulk spawning to tub, after your case layer, do you tie off the sub in a bag to build CO2? Or are the bags just for cleanup and all? I understand now no lids from the start is okay with a proper greenhouse and humidity + FAE. But maybe a lid on for CO2 build up may help? then open up after colonization? Or just leave just like that open air conditions and all.? Currently I leave my Lids Bod style upside down until full colonization, than I remove the lid. I still have FAE through the quarter inch gaps between tub and lid. But maybe no lid from the start?
Edited by Shiro (06/28/21 10:52 AM)
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Shiro
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Re: Set it & Forget it Grow Tent [Re: S.Crispa] 1
#27366120 - 06/28/21 10:48 AM (2 years, 6 months ago) |
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Try putting your Hepa filter outside your tent and running duct inside your tent, so that the hepa pulls dry outside air and positively pressurizes your tent with it. This should stop sopping wet hepa filters as well as mold and other things from building in your air cleaning unit.
-------------------- Let’s cultivate Agarikon!
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: Shiro] 1
#27366133 - 06/28/21 10:58 AM (2 years, 6 months ago) |
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Quote:
Shiro said: So I see the bags in your tubs, immediately after bulk spawning to tub, after your case layer, do you tie off the sub in a bag to build CO2? And then open up after colonization? Or just leave just like that open air conditions and all.? Currently I leave my Lids Bod style upside down until full colonization, than I remove the lid. I still have FAE through the quarter inch gaps between tub and lid. But maybe no lid from the start?
No. I use cheap trash bags to mix my spawn and substrate then use the same bag as a liner. The trash bags makes it easy to mix and easy to clean up after harvest. If your environment is dialed in correctly, you won't need to use a lid for colonization.
Quote:
Shiro said: Try putting your Hepa filter outside your tent and running duct inside your tent, so that the hepa pulls dry outside air and positively pressurizes your tent with it. This should stop sopping wet hepa filters as well as mold and other things from building in your air cleaning unit.
I am not sure what you are refering to. I don't use a hepa for my tent and my conditions are not sopping wet. I do pull the air from outside the tent and it is set up for positive pressure.
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Shiro
Padwon



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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27366142 - 06/28/21 11:05 AM (2 years, 6 months ago) |
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I need to do better at organizing my replies, the comment about placing the Hepa filter outside the tent was for c. Crispa. He said he placed one inside the tent... and okay, I am onboard with zero lids, now I gotta source a bunch of lil 15 quart tubs. What to do with all these 66 quarts now. Honestly gonna be so much easier not dealing with these big ass tubs. Thanks mannn. Oh and the tip about mixing in the trash bag and than just straight into the tub, so genius! Right now I’m wasting so much time cutting big ass liners to fit perfectly in my tubs. Seems cleaner your way too. Just fold the bag over the tub, no cutting of excess plastic necessary. Wow. Glad to learn from you
-------------------- Let’s cultivate Agarikon!
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: Shiro] 1
#27366147 - 06/28/21 11:08 AM (2 years, 6 months ago) |
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Sorry. It was actually my fault. I didn't realize you hit the reply button on S. Crispa's post.
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Shiro
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27366240 - 06/28/21 12:54 PM (2 years, 6 months ago) |
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No worries bruddah, ima learn how to quote in here so I’m easier to follow. I have 1 more for ya tho, since you are so generous with your knowledge. How many quarts of spawn do you use per 15 quart tub? And again on your spawn to sub ratio? Oh yea and it took me an Hour to program 1 minute every 20 for my Fan , lol, programming is useful but boring as all heck.
-------------------- Let’s cultivate Agarikon!
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: Shiro] 1
#27366252 - 06/28/21 01:09 PM (2 years, 6 months ago) |
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I started off using 3 qts of spawn to 6 qts of substrate but I cut it back to 2.5 qts of spawn and 6 qts of substrate. Could be coincidence but I had better yields when I cut back on the amount of spawn I was using. So basically I went from a 1:2 ratio to a 5:12 ratio.
Getting things like the interval timer dialed in can be boring and tedious but I promise once you have that tent dialed in, it will be set and forget.
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darrentanner89
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27367340 - 06/29/21 09:40 AM (2 years, 6 months ago) |
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Amazing thread, just discovered it now thanks to @doubleD
I was under the impression the tent needs FAE 4 to 6 times an hour. Wouldn't it be better to leave the intake on 24/7?
Edited by darrentanner89 (06/29/21 09:45 AM)
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verum subsequentis
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BrownBear
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Thank you.
How many FAE's per hour would really depend on the species of mushroom that you are growing in the tent. For cubensis mushrooms, 3 FAE's per hour is adequate. For some gourmet mushrooms you may need 4-8 per hour. In nature they get constant fresh air so the more you can provide, the better. The other variable is humidity. If I ran my intake 24/7 my rh would be 80% or lower. This is not high enough for growing cubensis. I have found that for growing cubensis in my tent, 3 FAE's per hour and 88-92% rh is the sweet spot to have great results. If growing some other species of mushroom, you will have to play with the conditions in order to find their sweet spot.
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darrentanner89
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27367884 - 06/29/21 04:00 PM (2 years, 6 months ago) |
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Quote:
Iambrownbear said: Thank you.
How many FAE's per hour would really depend on the species of mushroom that you are growing in the tent. For cubensis mushrooms, 3 FAE's per hour is adequate. For some gourmet mushrooms you may need 4-8 per hour. In nature they get constant fresh air so the more you can provide, the better. The other variable is humidity. If I ran my intake 24/7 my rh would be 80% or lower. This is not high enough for growing cubensis. I have found that for growing cubensis in my tent, 3 FAE's per hour and 88-92% rh is the sweet spot to have great results. If growing some other species of mushroom, you will have to play with the conditions in order to find their sweet spot.
I guess I will have to play around with the FAE and RH and dial it in. I was thinking maybe using two Ultra-Sonic Humidifiers to combat the constant fresh air. The Ultra-Sonic Humidifiers also introduce oxygen by breaking down the water too apparently from what I've read.
PS: Is there a way to get notifications from posts?
Edited by darrentanner89 (06/29/21 04:00 PM)
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BrownBear
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If you can keep the rh in the right range with those 2 humidifiers while providing constant FAE, I say go for it.
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27367898 - 06/29/21 04:14 PM (2 years, 6 months ago) |
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Is there a way to get notifications from posts?
Not that I am aware of.
If you keep your threads page open and refresh whenever you check, threads will be highlighted notifying you that new posts have been added.
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darrentanner89
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27367995 - 06/29/21 05:06 PM (2 years, 6 months ago) |
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Are you in Canada by any chance?
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BrownBear
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No.
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darrentanner89
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27368087 - 06/29/21 06:22 PM (2 years, 6 months ago) |
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Anybody use fans inside their tents or grow rooms to help eliminate pockets of stale air?
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BrownBear
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I don't need one in the 5x5 tent but if I was using something bigger such as a 4x8 or 5x10, I would definitely consider it.
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Shiro
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Quote:
darrentanner89 said: Anybody use fans inside their tents or grow rooms to help eliminate pockets of stale air?
I have an 7x7 grow tent. And have a constant Hepa filter on the lowest setting positively pressurizing my tent, it’s up high and points that fresh air directly at a mini waterproof fan that is pointed at the humidifier output. The hepa runs 24/7. And the mini fan runs 12/12 with the lights, it also cools the LED lights, not that they get any more than warm. I’ve also got a waterproof in-line fan on Brownbears schedule of 1 minute every 20. This drops my humidity to like 89, but over the next 5-10 min it rises right back up to 92% this seems to be working great except for when I over tend to them. Otherwise when I forget about them and come back their is a forest. Just can’t let em sporulate. Whenever I intervene I slow the process. Automation is rewarding. I might add that before I had this constant circulation I had stale air problems, I could just feel it when I went in the tent, it wasn’t fresh. Now it’s like a breath of fresh air in there every time!
-------------------- Let’s cultivate Agarikon!
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darrentanner89
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Re: Set it & Forget it Grow Tent [Re: Shiro] 1
#27372241 - 07/02/21 08:52 PM (2 years, 6 months ago) |
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Quote:
Shiro said:
Quote:
darrentanner89 said: Anybody use fans inside their tents or grow rooms to help eliminate pockets of stale air?
I have an 7x7 grow tent. And have a constant Hepa filter on the lowest setting positively pressurizing my tent, it’s up high and points that fresh air directly at a mini waterproof fan that is pointed at the humidifier output. The hepa runs 24/7. And the mini fan runs 12/12 with the lights, it also cools the LED lights, not that they get any more than warm. I’ve also got a waterproof in-line fan on Brownbears schedule of 1 minute every 20. This drops my humidity to like 89, but over the next 5-10 min it rises right back up to 92% this seems to be working great except for when I over tend to them. Otherwise when I forget about them and come back their is a forest. Just can’t let em sporulate. Whenever I intervene I slow the process. Automation is rewarding. I might add that before I had this constant circulation I had stale air problems, I could just feel it when I went in the tent, it wasn’t fresh. Now it’s like a breath of fresh air in there every time!
Did you crunch the math? Leaving it on 24/7 seems much easier. How much FAE per hour? Am I reading this right? You have two intakes, one 24/7 and one 1m ON/1m OFF?
I am planning to install this in the following order:
Furnace pre-filter > B > A > Tent.
A. https://www.acinfinity.com/hvac-home-ventilation/inline-duct-fan-systems/cloudline-t8-quiet-inline-duct-fan-system-with-temperature-and-humidity-controller-8-inch/
B. https://www.lennoxpros.com/healthy-climate-hepa-60-bypass-air-filtration-system-500-cfm/p/X4914?clear=true
Edited by darrentanner89 (07/02/21 08:57 PM)
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Shiro
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Okay wow so I just looked into it. The hepa filer has a rating of 5 Air exchanges per hour at a 183 square foot room, not cubed. My tent is 7x7 so 49 square feet... 183 divided by 49 is 3.7 and 3.7x 5 air exchanges per room is 18.5 air exchanges per hour. But that doesn’t specify which fan speed, and the low is drastically less then the high. So say the low is a third the high and they used full blast for the test I would only be getting 6 air exchanges per hour. And at a nice low pace. Calculating in the exhaust fan on 1 minute every 20 I think that I remember getting 8 air exchanges per hour on the low setting I run. On top of that I have a fan blowing fresh mist around in sync with light 12/12. You mean I should leave that internal fan on 12/12? Or the hepa pushing air in? Cuz since that’s on 24/7 there is always fresh air coming in. But it’s not as circulated in the night with the small mini mist fan off. Mist still be pumping tho. The tent doesn’t seem to get under humid, if anything I am dealing with wet surface, that’s why I increased FAE.
-------------------- Let’s cultivate Agarikon!
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darrentanner89
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Re: Set it & Forget it Grow Tent [Re: Shiro] 1
#27373087 - 07/03/21 04:35 PM (2 years, 6 months ago) |
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Quote:
Shiro said: Okay wow so I just looked into it. The hepa filer has a rating of 5 Air exchanges per hour at a 183 square foot room, not cubed. My tent is 7x7 so 49 square feet... 183 divided by 49 is 3.7 and 3.7x 5 air exchanges per room is 18.5 air exchanges per hour. But that doesn’t specify which fan speed, and the low is drastically less then the high. So say the low is a third the high and they used full blast for the test I would only be getting 6 air exchanges per hour. And at a nice low pace. Calculating in the exhaust fan on 1 minute every 20 I think that I remember getting 8 air exchanges per hour on the low setting I run. On top of that I have a fan blowing fresh mist around in sync with light 12/12. You mean I should leave that internal fan on 12/12? Or the hepa pushing air in? Cuz since that’s on 24/7 there is always fresh air coming in. But it’s not as circulated in the night with the small mini mist fan off. Mist still be pumping tho. The tent doesn’t seem to get under humid, if anything I am dealing with wet surface, that’s why I increased FAE.
I think the best way to do it is check the CFM of the fan, then do the math for the cubic square footage of the room. I guess there is no such thing as too much FAE?
Edited by darrentanner89 (07/04/21 02:37 PM)
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BrownBear
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Quote:
darrentanner89 said:
Quote:
Shiro said: Okay wow so I just looked into it. The hepa filer has a rating of 5 Air exchanges per hour at a 183 square foot room, not cubed. My tent is 7x7 so 49 square feet... 183 divided by 49 is 3.7 and 3.7x 5 air exchanges per room is 18.5 air exchanges per hour. But that doesn’t specify which fan speed, and the low is drastically less then the high. So say the low is a third the high and they used full blast for the test I would only be getting 6 air exchanges per hour. And at a nice low pace. Calculating in the exhaust fan on 1 minute every 20 I think that I remember getting 8 air exchanges per hour on the low setting I run. On top of that I have a fan blowing fresh mist around in sync with light 12/12. You mean I should leave that internal fan on 12/12? Or the hepa pushing air in? Cuz since that’s on 24/7 there is always fresh air coming in. But it’s not as circulated in the night with the small mini mist fan off. Mist still be pumping tho. The tent doesn’t seem to get under humid, if anything I am dealing with wet surface, that’s why I increased FAE.
I think the best way to do it is check then CFM of the fan, the do the math for the cubic square footage of the room. I guess there is no such thing as too much FAE?
Not as long as you can stay in the correct rh range.
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verum subsequentis
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27373210 - 07/03/21 07:16 PM (2 years, 6 months ago) |
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Isn't simply monitoring CO2 the best route?
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BrownBear
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It very well could be. You could have an exhaust fan hooked up to an environmental controller box that turns on and off depending on co2 levels. I know they make them for growing cannabis but cannabis is setup for the opposite reason.
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27373272 - 07/03/21 08:37 PM (2 years, 6 months ago) |
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Quote:
Iambrownbear said: It very well could be. You could have an exhaust fan hooked up to an environmental controller box that turns on and off depending on co2 levels. I know they make them for growing cannabis but the ones used for cannabis are setup for the opposite reason.
Edit: You could get just a co2 monitor for just over $100 to observe the co2 levels in the room and adjust your intake fan cycles accordingly. But in my setup, I don't think it is neccessary.
Edited by BrownBear (07/05/21 11:24 AM)
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darrentanner89
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Quote:
verum subsequentis said: Isn't simply monitoring CO2 the best route?
I believe so. However I can't find sources on what is the optimal C02 levels.
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BrownBear
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https://www.shroomery.org/forums/showflat.php/Number/7187887
If you are looking for the growth parameters for other species, let me know.
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darrentanner89
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27375652 - 07/05/21 08:33 PM (2 years, 6 months ago) |
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Quote:
Iambrownbear said: https://www.shroomery.org/forums/showflat.php/Number/7187887
If you are looking for the growth parameters for other species, let me know.
You are a God! Thanks bro! This is for cubensis?
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BrownBear
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Yes. Psilocybe Cubensis.
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Awaken_Us
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27383065 - 07/11/21 12:25 PM (2 years, 6 months ago) |
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Awesome thread, very informative. Killer flushes Iambrownbear.
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fungilove
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Quote:
PS: Is there a way to get notifications from posts?
Yes, here https://www.shroomery.org/forums/editemail.php?Cat=
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Johny bagel
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27409020 - 07/30/21 10:09 PM (2 years, 5 months ago) |
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What substrate are you using , and are you casing ? Im currently using a tent too but with grow bags, and im having a hard time having a nice canopy lile you !
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: Johny bagel] 1
#27409067 - 07/30/21 11:00 PM (2 years, 5 months ago) |
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I was using a corncob/coir substrate. 2.5 qts spawn, 6 qts sub with 5 cups of coir for a top layer at spawning in 15 qt tubs.
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Shiro
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27424331 - 08/11/21 04:11 PM (2 years, 5 months ago) |
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You add coir case layer immediately after sending into bulk spawn? Not after colonization?
-------------------- Let’s cultivate Agarikon!
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: Shiro] 2
#27424347 - 08/11/21 04:22 PM (2 years, 5 months ago) |
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Correct.
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darrentanner89
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27426802 - 08/13/21 12:28 PM (2 years, 5 months ago) |
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I use coco coir, vermiculite, and gypsum. No poop.
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bagga
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27456949 - 09/05/21 10:27 AM (2 years, 4 months ago) |
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I've been tracking this thread, thanks for putting together a really helpful guide.
Do you think it's possible to introduce heat to this setup?
It's going to get cold in my garage (40-50f nights), and I'm trying to work out how to create a heated controlled space before winter.
-------------------- _______________________ For personal religious use only. Embrace infinity for a healthier mind.
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BrownBear
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Re: Set it & Forget it Grow Tent [Re: bagga] 1
#27457323 - 09/05/21 03:39 PM (2 years, 4 months ago) |
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You're welcome.
The best way of going about heating a tent like that is to heat the room that it is in. It is too dangerous to place a space heater in the tent. I cannot think of a viable way to pump the heat in. Honestly, the only thing I can think of is to heat the water for the fogger. You could buy a heating element for the reservoir or run your hot water line to it.
Edited by BrownBear (09/05/21 03:40 PM)
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bagga
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27458003 - 09/06/21 08:23 AM (2 years, 4 months ago) |
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Thanks. Yeah, I agree a space heater is a bad idea.
I thought about a bar heater, but the humidity makes me worry about it rusting and burning too.
Also considered rigging a water radiator to pump hear in (radiator, small pump, small reservoir and a water heater), but it seems like overkill.
Probably a nuts idea- do you think a large heated towel rack would radiate enough heat?
https://www.overstock.com/Home-Garden/Amba-Freestanding-Solo-33-Bathroom-Towel-Warmer/12129778/product.html?opre=1&option=19461597
-------------------- _______________________ For personal religious use only. Embrace infinity for a healthier mind.
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StanleyTheObese
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Re: Set it & Forget it Grow Tent [Re: bagga] 1
#27469985 - 09/15/21 10:27 PM (2 years, 4 months ago) |
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midwestmush
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Re: Set it & Forget it Grow Tent [Re: BrownBear] 1
#27723561 - 04/06/22 05:46 PM (1 year, 9 months ago) |
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Hi Brownbear. In your passive exhaust is it just open at the top or does it have a baffle? Just curious thanks in advance
Edited by midwestmush (04/06/22 08:58 PM)
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RP3


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Re: Set it & Forget it Grow Tent [Re: BrownBear]
#28374066 - 06/25/23 12:13 PM (6 months, 30 days ago) |
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Quote:
BrownBear said: You're welcome.
The best way of going about heating a tent like that is to heat the room that it is in. It is too dangerous to place a space heater in the tent. I cannot think of a viable way to pump the heat in. Honestly, the only thing I can think of is to heat the water for the fogger. You could buy a heating element for the reservoir or run your hot water line to it.
Do you think it would be possible to set up an inline fan on the outside and have a heater placed in front on the intake (not too close of course) with both connected to a thermostat plug on the outside and run a temperature probe run to the inside? That way it would pull the heat inside as opposed to having an active fire hazard on the inside.
Also, if youre worried about anything in your tent catching fire, my friend has one of these in his if y'all are interested it seems like a good idea. He has it zip tied to the top. https://litsservices.com/products/strike-first-5-lb-abc-automatic-fire-extinguisher-horizontal
-------------------- "They say money can't buy you happiness, but id rather cry in a dodge challenger than on the sidewalk" Zombie "When working with psychedelic substances, you must always start with yourself" Dr. Albert Hofmann (1906-2008, Rest in peace) Any questions/posts asked/posted by myself are purely, 100% hypothetical and/or make-believe and do not state fact or any current events in any form.
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CAL90
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Re: Set it & Forget it Grow Tent [Re: RP3]
#28375892 - 06/26/23 09:29 PM (6 months, 28 days ago) |
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This might be a stupid question but is the humidity enough here for the fruiting chamber or do you need to spray the tubs still ?
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r3cycle080
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Re: Set it & Forget it Grow Tent [Re: BrownBear]
#28452076 - 08/30/23 07:02 AM (4 months, 26 days ago) |
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Honest question... If I am growing in a tent with steady humidity and temp, do I need to cover the tubs or bags inside the tent?
-------------------- Christopher R BradshW
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