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OfflineToadKnowledge
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Changed terrarium, now having trouble
    #19477091 - 01/26/14 02:25 PM (10 years, 11 months ago)

Hey guys,

So my project is growing great but I decided to switch my cakes into a plastic container like the ones built in the TEKs. I had a small glass terrarium before and had no problem. The temp was fine, humidity at 100% all the time. Now that I switched to this container (for more space for the mushrooms to flourish without hitting the glass of the terrarium), the humidity stays at 85%. I don't know what the do to make it 100%. Any suggestions?

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OfflineVE3HPC
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Re: Changed terrarium, now having trouble [Re: ToadKnowledge]
    #19477124 - 01/26/14 02:34 PM (10 years, 11 months ago)

When you say plastic container, what do you mean? Is it a SGFC? or a closed tote? a Cooler? Pics?


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OfflineToadKnowledge
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Re: Changed terrarium, now having trouble [Re: VE3HPC]
    #19477139 - 01/26/14 02:38 PM (10 years, 11 months ago)

Yes it's a SGFC

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Offlinelil_demented
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Re: Changed terrarium, now having trouble [Re: ToadKnowledge]
    #19477160 - 01/26/14 02:46 PM (10 years, 11 months ago)

what is the humidity and temp in the room that the SGFC is in?

How many inches of perlite would you say you have?

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InvisibleMudaFuka
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Re: Changed terrarium, now having trouble [Re: ToadKnowledge]
    #19477165 - 01/26/14 02:47 PM (10 years, 11 months ago)

How big is your SGFC and how many cakes are in it? how deep is your perlite? Is there good air flow coming up from the bottom holes? Are you sure your hydrometer is correct.


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OfflineToadKnowledge
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Re: Changed terrarium, now having trouble [Re: MudaFuka]
    #19477179 - 01/26/14 02:53 PM (10 years, 11 months ago)

what is the humidity and temp in the room that the SGFC is in?
How many inches of perlite would you say you have?

The room temp is 75 degrees. 5 inches of perlite.

How big is your SGFC and how many cakes are in it? how deep is your perlite? Is there good air flow coming up from the bottom holes? Are you sure your hydrometer is correct.

5 cakes. 5 inches of perlite. No there isn't any air from the bottom holes but I think i might of made the holes too big? What do you think?


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OfflineVE3HPC
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Re: Changed terrarium, now having trouble [Re: ToadKnowledge]
    #19477181 - 01/26/14 02:53 PM (10 years, 11 months ago)

Hmmm... Have you watched the RR clip on making a SGFC? Followed to spec? Make sure there is no air blowing in the room that your SGFC is in, no vents blowing at it, no fans on, etc. Moving air will move the humidified air in the SGFC and replace it with air that is less humid, screwing up your chamber RH.

If blowing air is not a concern, make sure ambient room temp is at least room temperature (70 to 72 degrees). You need to have the air in your SGFC slightly warmer (room temp) than the temp your perlite is. Your perlite, because its damp will allow the air around it to be cooler than the air above it. This makes the air around the perlite slightly more dense, creating a pocket of higher air pressure. This temperature differential is what causes the pressure differential needed to get the moist air to move up and away from the perlite and move its way into the lower pressure air above, into the SGFC.

If not, you may have too many holes allowing too much humid air to escape and cause dry air to take its place. Try misting and fanning more often, see if maybe you can get it to increase by simply doing that.

In the summer, my SGFC makes do with 2 decent mistings a day and 2 to 3 FAE's. In winter, I need double the misting and fanning cycles to keep the humidity just because the ambient air is that much dryer.

Good luck!


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OfflineVE3HPC
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Re: Changed terrarium, now having trouble [Re: VE3HPC]
    #19477187 - 01/26/14 02:55 PM (10 years, 11 months ago)

I just now saw the pics, I couldnt see the bottom of the SGFC. Is it elevated off the surface of what it is sitting on? You need to give the bottom holes access to adequate restriction free air supply.


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OfflineToadKnowledge
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Re: Changed terrarium, now having trouble [Re: VE3HPC]
    #19477193 - 01/26/14 02:57 PM (10 years, 11 months ago)

ahh ok the blowing air might be a factor. I have a heater inside of the closet I'm growing it in and it's facing the chamber.

When I mist and fan the temp drops and humidity decreases.

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InvisiblebodhisattaMDiscordReddit
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Re: Changed terrarium, now having trouble [Re: ToadKnowledge]
    #19477207 - 01/26/14 03:01 PM (10 years, 11 months ago)

Quote:

ToadKnowledge said:
ahh ok the blowing air might be a factor. I have a heater inside of the closet I'm growing it in and it's facing the chamber.

When I mist and fan the temp drops and humidity decreases.




the heater will dry your shit out in no time. The only kind of heater you can really have with a SGFC is the oil filled radiator otherwise it will dry it all out. Even with the radiator it shouldn't be close to the SGFC at all. Take a look at the link in my signature and read the Fruiting chamber,FAE,RH,misting and fanning parts.

Your cheap hygrometer probably doesn't read humidity accurately at all so I would ignore the readings you get. The only hygrometers accurate enough for a reasonable amount of money are calibrateable analog cigar box ones and synthetic hair ones.

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InvisibleMudaFuka
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Re: Changed terrarium, now having trouble [Re: VE3HPC]
    #19477211 - 01/26/14 03:02 PM (10 years, 11 months ago)

Quote:

VE3HPC said:
I just now saw the pics, I couldnt see the bottom of the SGFC. Is it elevated off the surface of what it is sitting on? You need to give the bottom holes access to adequate restriction free air supply.



:whathesaid: You said there isn't any air flow from the bottom. I would say that's a problem. Also ditch the heater and if you are growing in a closet try to leave the door open as much as possible.


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OfflineVE3HPC
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Re: Changed terrarium, now having trouble [Re: MudaFuka]
    #19477220 - 01/26/14 03:05 PM (10 years, 11 months ago)

Quote:

MudaFuka said:
Quote:

VE3HPC said:
I just now saw the pics, I couldnt see the bottom of the SGFC. Is it elevated off the surface of what it is sitting on? You need to give the bottom holes access to adequate restriction free air supply.



:whathesaid: You said there isn't any air flow from the bottom. I would say that's a problem. Also ditch the heater and if you are growing in a closet try to leave the door open as much as possible.





Yes, I would get rid of the heater and stop all forms of moving air. Because you are growing in a closet, you should keep the door cracked open slightly ^^^what he said^^^ Just make sure your closet is at room temp, raise the SGFC off the surface slightly (use jar lids or something, in each corner of the SGFC) mist and fan, recheck humidity. Should be ok from there!

BTW the holes look fine.


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OfflineToadKnowledge
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Re: Changed terrarium, now having trouble [Re: MudaFuka]
    #19477225 - 01/26/14 03:06 PM (10 years, 11 months ago)

hmm it's strange because they were growing in the glass terrarium perfectly and it has no air exchange in the bottom. I just now put jars in the bottom of the chamber so it's off of the floor.

The heater is just so the closet is a 70-75 degrees. Usually when I turn it off the temp in the terrarium drops as well. I took it out though to see if it's any different in the new chamber

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InvisibleMudaFuka
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Re: Changed terrarium, now having trouble [Re: ToadKnowledge]
    #19477244 - 01/26/14 03:11 PM (10 years, 11 months ago)

Quote:

ToadKnowledge said:
hmm it's strange because they were growing in the glass terrarium perfectly and it has no air exchange in the bottom. I just now put jars in the bottom of the chamber so it's off of the floor.

The heater is just so the closet is a 70-75 degrees. Usually when I turn it off the temp in the terrarium drops as well. I took it out though to see if it's any different in the new chamber



the air rising up threw the moist perlite creates humidity in a SGFC.
SGFCs are engineered to operate in a certain way. Any deviation from this will cause problems.


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OfflineToadKnowledge
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Re: Changed terrarium, now having trouble [Re: MudaFuka]
    #19477272 - 01/26/14 03:19 PM (10 years, 11 months ago)

Oh alright I see. I made the changes, I'll update the thread in a few. :thumbup:

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Offlinevikingsc
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Re: Changed terrarium, now having trouble [Re: MudaFuka]
    #19477297 - 01/26/14 03:26 PM (10 years, 11 months ago)

Quote:

MudaFuka said:
Quote:

VE3HPC said:
I just now saw the pics, I couldnt see the bottom of the SGFC. Is it elevated off the surface of what it is sitting on? You need to give the bottom holes access to adequate restriction free air supply.



:whathesaid: You said there isn't any air flow from the bottom. I would say that's a problem. Also ditch the heater and if you are growing in a closet try to leave the door open as much as possible.



Quote:

MudaFuka said:
Quote:

VE3HPC said:
I just now saw the pics, I couldnt see the bottom of the SGFC. Is it elevated off the surface of what it is sitting on? You need to give the bottom holes access to adequate restriction free air supply.



:whathesaid: You said there isn't any air flow from the bottom. I would say that's a problem. Also ditch the heater and if you are growing in a closet try to leave the door open as much as possible.



Quote:

MudaFuka said:
Quote:

VE3HPC said:
I just now saw the pics, I couldnt see the bottom of the SGFC. Is it elevated off the surface of what it is sitting on? You need to give the bottom holes access to adequate restriction free air supply.



:whathesaid: You said there isn't any air flow from the bottom. I would say that's a problem. Also ditch the heater and if you are growing in a closet try to leave the door open as much as possible.



:whathesaid:
Most of the humidity in an SGFC is from the bottom holes on the floor of the FC humidifying the air that comes by running through the soaked perlite.

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OfflineToadKnowledge
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Re: Changed terrarium, now having trouble [Re: vikingsc]
    #19477400 - 01/26/14 03:43 PM (10 years, 11 months ago)

hmmm, close but no cigar. The humidity is at 90% now.

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OfflineQuexl
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Re: Changed terrarium, now having trouble [Re: MudaFuka]
    #19477436 - 01/26/14 03:53 PM (10 years, 11 months ago)

Quote:

MudaFuka said:

the air rising up threw the moist perlite creates humidity in a SGFC.





I've always pictured it as Fickian diffusion, home slice. :smile: With CO2 just falling out of the container like lechate.


Toad, could your hygrometer be inaccurate? I operate mine at 93-94% without problems.


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OfflineToadKnowledge
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Re: Changed terrarium, now having trouble [Re: Quexl]
    #19477445 - 01/26/14 03:56 PM (10 years, 11 months ago)

Possibly. I bought it for like 3 bucks.

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Offlinelil_demented
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Re: Changed terrarium, now having trouble [Re: ToadKnowledge]
    #19477469 - 01/26/14 04:01 PM (10 years, 11 months ago)


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