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sower
Tea junkie



Registered: 10/13/09
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Hole placement/size/count for odd-sized 6.5 gallon minitub?
#14488695 - 05/21/11 07:54 AM (12 years, 8 months ago) |
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Hi,
I'm currently about to do a minitub. The tub is a 6.5 gallon 12.5" x 12" x 9.5", so it's relatively high, but has a small surface area. I'm planing to use a 4" substrate/spawn level, which will fit roughly 5 quarts, and still leave enough room for growth. I'm going for the "set and forget" approach, so I'm aiming for something self-regulating when it comes to humidity/fae.
Anyway. I'm not sure how many holes I need, and what size they should be. I'm concerned about over doing it, and ending up loosing all the humidity and having to fan and mist several times a day.
Right now, I'm considering doing 4 1-2" holes on each long-side; two at substrate level and two at the top in parallel. I also considered doing two bigger holes at substrate level on the long-sides, and one at the top of each short side. But I really don't know which would preform better, as I have no experience with a tub this small.
I looked into Doc_T's shotgun+minitub hybrid too, would that perhaps be a better approach?
Opinions/experiences anyone?
Thanks.
-------------------- "If voting changed anything, they'd make it illegal"
Edited by sower (05/21/11 08:27 AM)
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Buckeye Oysters
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Registered: 08/09/08
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Re: Hole placement/size/count for odd-sized 6.5 gallon minitub? [Re: sower]
#14488735 - 05/21/11 08:12 AM (12 years, 8 months ago) |
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Those dimensions don't make sense... btw, '=ft and "=inches
Either way you want 1/4inch holes every 2" starting 1 inch above bulk sub.
-------------------- Evolution is Lamarckism in disguise. Adaptation never creates a new species or trait, but rather the new species/trait always existed within the parent DNA until circumstances allowed it to be activated. For instance, every wolf has the DNA for poodles, but that DNA would never be revealed without man selectively breeding for it.
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sower
Tea junkie



Registered: 10/13/09
Posts: 194
Loc: Shpongleland
Last seen: 8 years, 6 months
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Re: Hole placement/size/count for odd-sized 6.5 gallon minitub? [Re: Buckeye Oysters]
#14488768 - 05/21/11 08:26 AM (12 years, 8 months ago) |
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Whops, sorry, I'm not accustomed to non-metric units, obviously.
The box is roughly 12.5 inches high, 12 inches long and 9.5 inches deep, which is roughly 6.5 gallons according to wolfram (31x33x24cm).
So you're suggesting a shotgun approach?
-------------------- "If voting changed anything, they'd make it illegal"
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Buckeye Oysters
From Zero to Hero



Registered: 08/09/08
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Last seen: 9 years, 2 months
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Re: Hole placement/size/count for odd-sized 6.5 gallon minitub? [Re: sower]
#14488957 - 05/21/11 09:57 AM (12 years, 8 months ago) |
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if it is only 12x12x9.5 it doesnt hold 6.5 gal, more like 2-3gal. 1 gal = 3.75 liters so you know. Yeah like shotgun/monotub hybrid. Do a search for Doc_T monotub tek.
-------------------- Evolution is Lamarckism in disguise. Adaptation never creates a new species or trait, but rather the new species/trait always existed within the parent DNA until circumstances allowed it to be activated. For instance, every wolf has the DNA for poodles, but that DNA would never be revealed without man selectively breeding for it.
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sower
Tea junkie



Registered: 10/13/09
Posts: 194
Loc: Shpongleland
Last seen: 8 years, 6 months
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Re: Hole placement/size/count for odd-sized 6.5 gallon minitub? [Re: Buckeye Oysters]
#14488977 - 05/21/11 10:05 AM (12 years, 8 months ago) |
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Ok, thanks for you answers. 
I don't know why wolfram insists that it's 6.5 gallons, I'm probably doing something weird.
Anyway, I'll go for that approach. Thanks again.
-------------------- "If voting changed anything, they'd make it illegal"
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shroomiin
unprofound


Registered: 12/24/07
Posts: 2,470
Loc: Zone 6
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Re: Hole placement/size/count for odd-sized 6.5 gallon minitub? [Re: Buckeye Oysters]
#14489027 - 05/21/11 10:19 AM (12 years, 8 months ago) |
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Quote:
Buckeye Oysters said: Those dimensions don't make sense... btw, '=ft and "=inches
Either way you want 1/4inch holes every 2" starting 1 inch above bulk sub.
I disagree. IMO those shotgun style mini mono's are beat. Do a normal style mini mono for primo results.
4 holes on each side of the tub. 1 to 1.5 inches in diameter. 2 starting RIGHT at the surface of the substrate and 2 higher up on each side.
you can change this around too, for example i just made a tub with 2 holes on each long side at substrate level, then 1 holes on each short side higher up.
you will find it hard to keep your rh at the correct level using a shotgun style tub. and you want a way for the co2 to escape the top of your sub, thus the holes RIGHT on the surface of your sub, not an inch above it. then stuff them all with polyfil.
not that the shotgun style wont work, but ive never been impressed with the results ive seen, and its just more holes to drill..
Edited by shroomiin (05/21/11 10:21 AM)
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sower
Tea junkie



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Re: Hole placement/size/count for odd-sized 6.5 gallon minitub? [Re: shroomiin]
#14489086 - 05/21/11 10:36 AM (12 years, 8 months ago) |
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Quote:
shroomiin said:
Quote:
Buckeye Oysters said: Those dimensions don't make sense... btw, '=ft and "=inches
Either way you want 1/4inch holes every 2" starting 1 inch above bulk sub.
I disagree. IMO those shotgun style mini mono's are beat. Do a normal style mini mono for primo results.
4 holes on each side of the tub. 1 to 1.5 inches in diameter. 2 starting RIGHT at the surface of the substrate and 2 higher up on each side.
you can change this around too, for example i just made a tub with 2 holes on each long side at substrate level, then 1 holes on each short side higher up.
you will find it hard to keep your rh at the correct level using a shotgun style tub. and you want a way for the co2 to escape the top of your sub, thus the holes RIGHT on the surface of your sub, not an inch above it. then stuff them all with polyfil.
not that the shotgun style wont work, but ive never been impressed with the results ive seen, and its just more holes to drill..
Ok, so basically what I was originally considering, i.e, doing the tub the same way I would a regular sized one. I guess that would be more comfortable to do, as it's familiar, and because drilling 50+ holes is a pita.
Thanks for your input
-------------------- "If voting changed anything, they'd make it illegal"
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sower
Tea junkie



Registered: 10/13/09
Posts: 194
Loc: Shpongleland
Last seen: 8 years, 6 months
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Re: Hole placement/size/count for odd-sized 6.5 gallon minitub? [Re: sower]
#14493110 - 05/22/11 08:48 AM (12 years, 8 months ago) |
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In case anyone wondered; I ended up going for 6 1.5" holes; two on each long side (4" apart) at substrate level and two on each short side high up. Because of the small size, I think that will be sufficient for a decent FAE while also maintaining a high RH.
My reasoning was mainly that it was less hassle that way, it's familiar to me, and because after some more research it seemed like people where largely successful with it.
I will probably experiment with a sg-style box at some point as well.
Thanks for your help people.
-------------------- "If voting changed anything, they'd make it illegal"
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sandman420
Saint PP



Registered: 06/17/04
Posts: 5,384
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Re: Hole placement/size/count for odd-sized 6.5 gallon minitub? [Re: sower]
#14493248 - 05/22/11 09:48 AM (12 years, 8 months ago) |
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it matters not. put some holes in it and do it.
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Buckeye Oysters
From Zero to Hero



Registered: 08/09/08
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Re: Hole placement/size/count for odd-sized 6.5 gallon minitub? [Re: sandman420]
#14494848 - 05/22/11 04:34 PM (12 years, 8 months ago) |
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should work. you can always close some up if drying out too fast or vise versa
-------------------- Evolution is Lamarckism in disguise. Adaptation never creates a new species or trait, but rather the new species/trait always existed within the parent DNA until circumstances allowed it to be activated. For instance, every wolf has the DNA for poodles, but that DNA would never be revealed without man selectively breeding for it.
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