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Offlinejamman
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Registered: 12/14/05
Posts: 280
Last seen: 16 years, 10 months
Why a deeper substrate in monotubs?
    #5422180 - 03/20/06 11:50 AM (17 years, 10 months ago)

I noticed a lot of people using 4" substrate depth when using a monotub design. Why is it preffered than say a 2 1/2" depth. I've seen some pics before of a 2" substrate in plant seedling trays in a martha type setup have huge results. Am I asking for contams by going thin?, because I know with straight h/poo I will still get good size fruits with a thinner substrate.

BTW, I know that each grower should do whats best for themselves and there is no standard for substrate depth, but it seems more often than not I see 4" as standard for monotubs.
THANKS!!!


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Invisibletiny_rabid_birds
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Registered: 11/08/05
Posts: 15,653
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Re: Why a deeper substrate in monotubs? [Re: jamman]
    #5422207 - 03/20/06 12:05 PM (17 years, 10 months ago)

I can only speculate as to why monotubs generally have such a deep substrate depth, but here's what I think.

People with marthas have numerous casing trays going at once, so they are able to stretch the use of their substrate among several trays in order to maximize surface area, with the hopes of more fruit = higher yield.

People with monotubs, however, generally have maybe 1 or 2 going at once, so they aim to maximize the size of fruits, and thus total yield, by increasing substrate depth.

I am, in no way, speaking for all cultivators, this is just my interpretation on the matter.


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Offlinejamman
SCI fan

Registered: 12/14/05
Posts: 280
Last seen: 16 years, 10 months
Re: Why a deeper substrate in monotubs? [Re: tiny_rabid_birds]
    #5422228 - 03/20/06 12:12 PM (17 years, 10 months ago)

Ok, that makes sense. My situation is a little different though, I have enough room to accomodate a dozen or so tubs. Do you think I'm loosing anything by spreading my substrate around in monotubs instead of in a martha? I haven't had great success (one good monotub flush of 50 grams dry) with my setup, but I have a lot of spawn and a good size space under my bed. I'm wandering if the combination of my thin substrates and my slightly modified monotubs are the cause of my problems.


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Offlinekungpow
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Re: Why a deeper substrate in monotubs? [Re: jamman]
    #5422390 - 03/20/06 12:55 PM (17 years, 10 months ago)

I am a monotub user and my substrate depths usually run about 5". Substrate depth makes a difference in the size of your fruits. The deeper the substrate the larger the fruits will be in theory.

I don't really have any real reason for making my substrate that deep. It is just that I put 10lbs of poo into one tub. I don't actually plan ahead of time how deep the sustrate will be. I just buy a tub and decide to put either 5 or 10 lbs in it. Then I calculate how deep it will be to put my holes in for FAE.

~Peace Out


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Monotub #3 - check out my best grow to date!!!!



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OfflineDrone
Derka Derka Derka
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Registered: 07/22/04
Posts: 667
Loc: Maryland
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Re: Why a deeper substrate in monotubs? [Re: kungpow]
    #5422465 - 03/20/06 01:17 PM (17 years, 10 months ago)

a deeper substrate has more nutes in total. there is more space using a DT or mono tub for a deeper substrate. you should get more flushes or bigger fruits. a tub is a kinda set it and forget it grow. usually people prepare alot of substrate to use at once for it. u have the space for a 4-5 inch substrate, why use 2 then ? :o


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Offlinekungpow
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Re: Why a deeper substrate in monotubs? [Re: Drone]
    #5422490 - 03/20/06 01:23 PM (17 years, 10 months ago)

Quote:

Drone said:
a deeper substrate has more nutes in total. there is more space using a DT or mono tub for a deeper substrate. you should get more flushes or bigger fruits. a tub is a kinda set it and forget it grow. usually people prepare alot of substrate to use at once for it. u have the space for a 4-5 inch substrate, why use 2 then ? :o




:thumbup:  True!!!


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Monotub #3 - check out my best grow to date!!!!



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OfflineCryogenicz
what?
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Registered: 07/01/04
Posts: 2,421
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Re: Why a deeper substrate in monotubs? [Re: kungpow]
    #5422597 - 03/20/06 01:53 PM (17 years, 10 months ago)

deeper substrate allows more flushes, and bigger fruits.


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Offlinejamman
SCI fan

Registered: 12/14/05
Posts: 280
Last seen: 16 years, 10 months
Re: Why a deeper substrate in monotubs? [Re: Cryogenicz]
    #5422643 - 03/20/06 02:05 PM (17 years, 10 months ago)

I understand that the deeper the substrate the taller the fruits. One reason I dont use a 4 or 5" substrate is because my tubs are only about 13" tall (58 qt). I never can get 5 flushes out of a tub, 2 or 3 and I'm usually gettin contams. Since my tubs are smaller, i don't get enough automated C02 exchange..so I have to fan and mist, which I don't really mind, but I'm thinking maybe thats where contams are coming from?

After a bad outbreak of trich, i've wiped everything down with bleach and replaced the hepa filter in my incubation/fruiting area. I'm trying to figure out whats going wrong, so any and all critisism (of my grow) is encouraged!


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Invisibleohmatic
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Registered: 02/28/04
Posts: 6,742
Loc: europe
Trusted Cultivator
Re: Why a deeper substrate in monotubs? [Re: jamman]
    #5422742 - 03/20/06 04:30 PM (17 years, 10 months ago)

look at the original monotub thread in my signature.

as i did grains it was about 2 inches deep and for poo also 2 inches.

there is NO REASON AT ALL to go deeper than that as i can tell from my experiences.
thats what i can tell you :wink:


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:penis: MONOTUB tek :sun: HEATBOMB tek :penis:

RIP #cultivation! ....can't associate? well FUCK U !


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OfflineCryogenicz
what?
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Registered: 07/01/04
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Re: Why a deeper substrate in monotubs? [Re: ohmatic]
    #5428473 - 03/22/06 12:58 AM (17 years, 10 months ago)

ohm- you dont think 4 inches is ok? I have noticed that when I do about 4 inches, my substrate shrinks very small, and I get about 3-4 flushes. seems like if I did it thinner I wouldnt get as many flushes, or as big of mushrooms...


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