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 agentjrr
student
Registered: 01/14/04
Posts: 48
Loc: Mountain West
Last seen: 19 years, 1 month
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 Aquarium Pump w'o perlite 
#2814222 - 06/21/04 01:37 PM (20 years, 5 months ago) |
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I recently started using a new rubbermaid. When I duplicated my previous setup for casings (perlite, supplemented be occasional misting) the humidity stayed consistently at well above 90%. Even after I stopped misting and started fanning regularly, the humidity stayed so high that the walls were dripping. The casing experienced severe overlay. So, I removed the perlite and went to hand misting alone. This container seems to be scarily well sealed. I would like to start using an air pump to supplement air exchange because my current job only gives me time to fan twice a day, which in my experience is not enough air exchange for multiple casings.
All the posts I find for using air pumps/air stones call for burying them in perlite or geolite. I would rather not do this because of my recent experience. Has anyone out there used an air pump without the perlite? I was thinking about just running the air lines into the container with an inline filter to keep the incoming air clean. Should I bother with an airstone/diffuser if it is not going to be submerged? Any thoughts?
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felix
Registered: 01/20/00
Posts: 10,503
Last seen: 2 months, 9 hours
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Re: Aquarium Pump w'o perlite [Re: agentjrr]
#2814675 - 06/21/04 04:34 PM (20 years, 5 months ago) |
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i used to use a cheap, dual outlet aquarium air pump. i had one tube on each side of the terrarium, near the top. near the bottom of the chamber, i had a small hole (comparable in size to one of the inlet holes) for expelling air.
worked very well. i'm pretty sure, a single outlet pump would work just as well.
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Real botanists laugh at HPS systems, we do however use high pressure sodium in the parking lot. - artthug
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 Citric
Registered: 03/19/04
Posts: 4,490
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Post deleted by Anno [Re: felix]
#2814729 - 06/21/04 04:54 PM (20 years, 5 months ago) |
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felix
Registered: 01/20/00
Posts: 10,503
Last seen: 2 months, 9 hours
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Re: Aquarium Pump w'o perlite [Re: Citric]
#2815090 - 06/21/04 06:58 PM (20 years, 5 months ago) |
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see the thing is, only when i wanted to initiate pinning would i turn them on.
at that point, killing the humidity was a good thing, cause i didn't want a soggy environment while the mushrooms started to form and grow/mature. perfect for when you are using a layer of perlite in the bottom for increasing the humidity, because it actually slightly dries out the rh.
if you are worried about killing your humidity, you simply add the tube too a cup of water, like agentjrr suggested but doesn't want to do.
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Real botanists laugh at HPS systems, we do however use high pressure sodium in the parking lot. - artthug
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agentjrr
student
Registered: 01/14/04
Posts: 48
Loc: Mountain West
Last seen: 19 years, 1 month
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Re: Aquarium Pump w'o perlite [Re: felix]
#2815974 - 06/22/04 12:41 AM (20 years, 5 months ago) |
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I've gone ahead and tried it, and it does lower the RH% a fair amount. I'll have to keep an eye on it. Maybe I will try a cool mist.
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mycoguy
old hand
Registered: 03/25/04
Posts: 874
Loc: PNW
Last seen: 14 years, 1 month
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Re: Aquarium Pump w'o perlite [Re: Citric]
#2816820 - 06/22/04 10:52 AM (20 years, 5 months ago) |
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just remember that CO2 is heavier than O2. So the O2 will just flow out the top of the chamber, while the C02 stays in the bottom.
What I did on my first grow, when I was using a 12"L x 10"W x 7"D Sterilite container, was drill a hole in the side of the tub, about 1/2" about the top of the casing, then stuff it lightly with polyfill.
I ran my air&humidity hose into a hole on the opposite site of the tub. This hole was about 1.5" about the casing layer. Obviously, when the humidity and O2 would be pumped in, it would push the heavier C02 out of the polyfilled hole. The polyfill plug did a good job of keeping the humidity in.
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(and no, that's not me in the avatar)
Yahoo! Pacific Northwest Mycology Group
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