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OfflineAK1000
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How do I calculate how much coir/verm and spawn is needed for a 60qt monotub?
    #23505455 - 08/03/16 12:23 PM (7 years, 5 months ago)

I just got a 60quart tub and it's quite large. I think if I follow damiontek5050's coir tek, it won't be enough to be a 3" base. 

Normally he requires:

1 Brick of Coir
2 Quarts of Verm
5 Quarts of Spawn

How could I know that will be enough to have a 3" thickness?  Is there a monotub calculator of some sort?  I was thinking of filling the tub with water to see how much water it takes to make it fill 3 inches high at least, but then I'm not sure how to figure it out because coir expands!


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InvisibleInocuole
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: AK1000]
    #23505459 - 08/03/16 12:25 PM (7 years, 5 months ago)

It might be 3.5 or a whole 4 inches thick, and that wouldn't be the end of the world.  Just follow the tek, you're thinking way too hard about this.  Monotub calculator. :lol:  You put in your spawn jars, then put in 2-3x that amount of bulk substrate, mix, level, top layer, done.

If you have some left over then you have some left over, good thing CVG stores really well.


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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: Inocuole]
    #23505496 - 08/03/16 12:35 PM (7 years, 5 months ago)

And it can even reach 4:1 spawn:cvg(g=gypsum).

Inocule do you use top layers made out of cvgs? I thought they are useless.


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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: oontribe]
    #23505502 - 08/03/16 12:37 PM (7 years, 5 months ago)

I do, and I think they're absolutely not useless.  Especially when you fruit at spawning.


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OfflineMycologist217
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: Inocuole]
    #23505529 - 08/03/16 12:44 PM (7 years, 5 months ago)

For my 66qt monos I like 1 650g brick, 2.5qts course vermiculite or 2qt fine verm, a couple handfuls of gypsum, and 5.5qts water....I usually use 5qts spawn for this mix, but have used 4,5,6, and 7 successfully!

I've also had tremendous flushes from 2.5" subs....the thinner substrates usually put out larger first flushes and struggle for a second.,,,but that isn't a problem as many of us are focusing on maximizing output on the first flush only....the old 1&Done.


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Invisibleweetsie
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: Inocuole]
    #23505541 - 08/03/16 12:46 PM (7 years, 5 months ago)

Quote:

Inocuole said:
I do, and I think they're absolutely not useless.  Especially when you fruit at spawning.




For less contamination I assume?


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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: weetsie]
    #23505552 - 08/03/16 12:49 PM (7 years, 5 months ago)

Quote:

weetsie said:
Quote:

Inocuole said:
I do, and I think they're absolutely not useless.  Especially when you fruit at spawning.




For less contamination I assume?




LOL what?  No, I spawn and fruit in open air, like most people.  The benefit is moisture/evaporation regulation.  No dry grains, no bruising from lack of water.


It's basically a casing layer that I have every intention of being fully colonized eventually.  By the time it's fully colonized it doesn't need an actual real casing layer and is already ready to spit out pins.  There's also the benefit of knowing that by the time your top layer is colonized, the actual substrate brick underneath will have fully colonized and consolidated for a day or two.


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Invisibleweetsie
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: Inocuole]
    #23505602 - 08/03/16 01:05 PM (7 years, 5 months ago)

I don't fruit at spawning so my sub doesn't really dry out but I can see the advantage.

Having an outer layer without spawn can be beneficial for reducing contamination regardless so it's not that ridiculous of an assumption.


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Offlinespacechildo
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: weetsie]
    #23505671 - 08/03/16 01:24 PM (7 years, 5 months ago)

after full colonization of the grains there is no more food left for contam spores to germinate on.
that's why we spawn in open air. covering contam spores with moist material like coir would actually increase odds of contams, if it wasn't for the fact coir dont give a fuck. neither does pasteurized/limed peat.


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Invisibleweetsie
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: spacechildo]
    #23505726 - 08/03/16 01:36 PM (7 years, 5 months ago)

Spawn to a bag or log and it's best to keep the grain away from the edges. Temp changes can cause a bit of condensation to build up and grain against the edges of the bag will contaminate much easier than most bulk substrates.

In a tub it's not so much of a problem, I never layer with unspawned substrate in a tub but thats purely out of lazyness, I can see the advantages.


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Offlinespacechildo
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: weetsie]
    #23505769 - 08/03/16 01:45 PM (7 years, 5 months ago)

how do you spawn to a log and add a top layer of CVG?? :stars:
got any pics, i'm majorly confused :lol:


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Invisibleweetsie
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: spacechildo]
    #23505979 - 08/03/16 02:36 PM (7 years, 5 months ago)

You would literally do just that, finish with a top layer of CVG when filling. In a log or a bag CVG is less springy than straw so you can end up with a gap at the top of the bag as handling it tends to compress it and the mycelium causes the sub to shrink a little too.
As the temperature changes from day to night you can end up with condensation that builds over time which can contaminate exposed grain.

As I said I don't bother with tubs as it's not required. I do wonder though, given fully colonized substrate can seemingly contaminate from contaminants in the air, wouldn't there be a slight difference in contamination rates depending on whether grain is exposed on the surface on not, I would assume side by side colonized grain would be more susceptible than colonized CVG.


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Offlinespacechildo
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: weetsie]
    #23506182 - 08/03/16 03:36 PM (7 years, 5 months ago)

condensation is just water, as long as the grains dont dry out they're fine.
no offence but it seems like a convenient excuse, its always your spawn unless your coir brick has seeds in it.

we are talking about monotubs right? not trays just spawned and sat in open air or anything?


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InvisibleComebackKid
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: spacechildo]
    #23506403 - 08/03/16 04:43 PM (7 years, 5 months ago)

Does it not say the height of the tub on the tag?
I'm going to be doing mine soon and my 66qt tub is 12 inches high.
So my understanding is I need to fill 3 inches with sub and spawn. That's 1/4 of my tub.
66 ÷ 4 = 16.5
I was going to do 9 quarts of sub and 8 quarts of spawn.

Now reading this thread I'm starting to feel like this would be way too much...


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Edited by ComebackKid (08/03/16 04:48 PM)


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OfflineAK1000
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: ComebackKid]
    #23510749 - 08/04/16 07:45 PM (7 years, 5 months ago)

Quote:

ComebackKid said:
Does it not say the height of the tub on the tag?
I'm going to be doing mine soon and my 66qt tub is 12 inches high.
So my understanding is I need to fill 3 inches with sub and spawn. That's 1/4 of my tub.
66 ÷ 4 = 16.5
I was going to do 9 quarts of sub and 8 quarts of spawn.

Now reading this thread I'm starting to feel like this would be way too much...




I think you have to keep in mind that the coir expands?


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InvisibleComebackKid
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: AK1000]
    #23510959 - 08/04/16 08:51 PM (7 years, 5 months ago)

Im going to be using 50/50 peat verm. Im planning on pasturize everything premixed in a bucket and adding 9 quarts of the final product to my spawn. Hoping for the best


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:amanita2: Substrate surface conditions / Monotub prep and care :sporedrop:

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Offlinespacechildo
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: ComebackKid]
    #23510970 - 08/04/16 08:54 PM (7 years, 5 months ago)

peat is not good as a substrate, its a casing material.
for a 66qt tub its normal to use 5-6qts of spawn to 1brick coir 1-3qts verm. Some use more spawn too, up to 8 afaik.


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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: spacechildo]
    #23510980 - 08/04/16 08:58 PM (7 years, 5 months ago)

Is it still possible to use peat with agricultural lime?
Or am I wasting my time?
Unfortunately where I live we dont have coir anywhere and I'd have to ship some from the states


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:amanita2: Substrate surface conditions / Monotub prep and care :sporedrop:

Look around you... Everything you see exists inside the mind.
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Offlinespacechildo
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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: ComebackKid]
    #23510986 - 08/04/16 09:01 PM (7 years, 5 months ago)

I'd say its a waste of time. Sure there's no pet stores near you either?
I order mine online too, get them for just over 2$ each inluding shipping.
or you can find some horses and collect their shit.


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Re: How do I calculate how much coir/verm and spawn is needed for a 60qt monotub? [Re: spacechildo]
    #23510998 - 08/04/16 09:04 PM (7 years, 5 months ago)

Damn. Yeah closest thing pet stores in my area carries are coarse coconut chips or some shit


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:amanita2: Substrate surface conditions / Monotub prep and care :sporedrop:

Look around you... Everything you see exists inside the mind.
Consciousness, the awareness that is experiencing this mind,
is peering in from outside the universe.

Our individual experiences are all part of the universe's experience of itself


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