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Psychedelicjunkie
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Substrate depth
#26956329 - 09/26/20 03:53 PM (3 years, 4 months ago) |
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Hey I have made 2 monotubs, my first ever. And my substrate is about 4 inches, maybe 4.1 - 4.2 with 6 Q spawn and 7 Q spawn in the other. Would it be more ideal to go for a bigger tub next time and go for like 3 inches depth? I think I will be going for 5 Quart spawn next run so I might get it down to like 3.9 inches with my current monotubs
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Spore211215
SporeGuy


Registered: 06/06/16
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From what I understand the ideal depth for good colonization times are 3 to 4 inches or less.
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FlufferNutter
Nerd Extraordinaire



Registered: 09/15/20
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You're fine. You can conceivably go all the way down to 2" if you want. You may not get multiple flushes, but it works just fine.
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verum subsequentis
seeker of truth



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Too thin and ya don't have enough water. Too thick and the combo of thermo genesis and anaerobic conditions will pop ya right in the pooper. I roll with subs about 3 inches in depth. Seems to work best for me given materials required per tub X time it takes to make two tubs divided by the square inches available for pins setting in two tubs - the affects of the third law of hydrodynamics and it's affect on co2 levels when applied to temps flux in a tub over 3.9999999999 inches deep.
All joking aside. Some cultivators love doing a bunch of tubs with smaller subs and some like them a bit thicker. We all find what we like through a couple tests here and there. Everyone that i know that is a good cultivator and has a preferred depth do very very well even though we disagree on small things. I like right about 3 inches.
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MLPismyOPSEC
That One Ponyfucker


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Sub depth should be anywhere between 2" to 4" and spawn ratio should be anywhere between 1:1 and 1:5 (you can go lower but your spawn needs to be immaculate). Sub depth less than 2" can stunt growth, over 4" is material inefficient, higher spawn ratios (1:1) are faster to colonize and more forgiving, lower (1:5) are more spawn efficient. Meet those parameters any way you'd like, and get to work!
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Psychedelicjunkie
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Okay thanks, I just don't wanna go too deep and waste materials that could have gotten me more yield when maybe I could go lower and be more efficient. Sounds like I wanna try a slightly bigger mono next and go for 3 inches and see how that goes.
Another question. I made my holes 4 inches and the substrate is right at the edge of those holes, had to like dig 0.1 inches away actually to make it fit. How do I do my polyfill now? Will it contaminate my substrate when I put it into the holes and it might be touching the substrate ? Or do i try and drill some new holes after it's fully colonized and make them 1 inch higher ?
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Psychedelicjunkie
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I may be leaning towards making new holes, I'm getting quite nervous about contaminating it. It's my first tubs and let tape be on the old holes. What do you say people?
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verum subsequentis
seeker of truth



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Don't drill new holes. Shit'll be fine. Poly isn't going to fuck you. If you don't want it touching the sub run out and grab some MP tape for the wholes. I like it better than poly any who. Otherwise just leave her be. Worst thing that'll happen is you'll have to pick some poly outa yer fruits. The myc may dry a tad right around there too. No biggie.
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Psychedelicjunkie
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I don't have to PC the poly if it's touching the sub?
And if I were to go out and buy the MP tape, would 1 layer be sufficient or should I double on the lower holes?
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verum subsequentis
seeker of truth



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no, you don't. If it's covered in mold I'd just toss it but, even then, a good rinsing should do.
Layers of mp depend on your conditions (as does every other fucking thing in the hobby) in the room. A dry room with airflow behaves very differently than a moist room with still air. I like to start with two layers, peel one off once the pins come in and then even poke some holes in the remaining piece as they mature. This all depends on the culture and myriad other factors. You need to learn to read the tub and the sub.
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Psychedelicjunkie
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Yeah it seems MP tape can do quite good, just finished reading pasty's MP monotub tek, and it sounds super instead of polyfill, easier to get consistent results and less pain in the ass. These are my two first tubs so I don't know if I should MP tape both or 1 MP and 1 polyfill... how big are your holes? Mine are 1,5", and I was thinking 2 layer bottom and 1 layer top.
How is your setup? And you say you remove 1 layer after the pins has matured? Do you have a fan running ?
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
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Loc: Milky way
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You're overthinking it. Different hole locations, sizes, and stuffing all work. Find what works for you
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verum subsequentis
seeker of truth



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1.5 inch holes with two layers over every hole. I remove the second layer on the top holes once the tub is colonized and then the second layers on the bottom holes once the pins are established. Additionally, I'll poke holes in some of or all of the rest if the culture/ tub/ room call for it.
Different cultures/ tubs/ rooms all call for different things so you'll just have to get a feel for it.
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Mycobro420
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3-4 inches is standard for sub depth. If you go down two 2 in with a high spawn ration you could get a lot of aborts cause the sub doesn't have enough water to support a bigger flush if you get a good pinset
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Psychedelicjunkie
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Okay thanks, I can't wait to try it with my tubs and see how they behave, so excited 😍
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