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Old 04-08-2013, 07:18 PM   #1
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DIY CO2 lnjector.

I just built a CO2 injector. I was wondering if anyone had any ideas for the defuser. I am planning to use an air stone and a fine sponge. Any other ideas or suggestions would be appreciated.

Also I want to know If there are any concerns using CO2 that I need to know about. Thanks everyone.
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Old 04-09-2013, 01:39 AM   #2
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Are those comet goldfish I see in there?
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Old 04-09-2013, 01:44 AM   #3
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Are those comet goldfish I see in there?
No gold fish. They poop to much.

It's a red glass barb. Very very hardy and active fish.
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Old 04-09-2013, 01:47 AM   #4
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Oh god, thought they were goldfish for a second, I was about to scold you for their poop
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Old 04-09-2013, 01:50 AM   #5
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Oh god, thought they were goldfish for a second, I was about to scold you for their poop
It is a 29 gallon so that wouldn't be too bad.
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Old 04-09-2013, 04:16 AM   #6
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It's a checkvalve stuffed into a 5ml medicine dropper stuck in a marineland maxi-jet powerhead 400gph it chopps the bubbles up so fine most of the time I can't even se them coming out


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Old 04-09-2013, 11:02 AM   #7
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It's a checkvalve stuffed into a 5ml medicine dropper stuck in a marineland maxi-jet powerhead 400gph it chopps the bubbles up so fine most of the time I can't even se them coming out
I have a bubble stone under my filter. I figure the bubbles will come up and be broken up by the water fall, or should I put the bubble stone under the filter intake, and let the bubbles go through the filter?
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Old 04-09-2013, 11:15 AM   #8
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if its a hob i prob wouldnt i tried it with my bio wheel and it sounded like it was grinding rocks. when i switched to a canister i tried it and it worked great but the canister made a slight churning noise not anything that bothered me but it bothered my wife when she was trying to sleep so i ordered this powerhead and it works great so great i have to shut it off 3/4 way through my lighting period lol
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Old 04-09-2013, 03:03 PM   #9
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if its a hob i prob wouldnt i tried it with my bio wheel and it sounded like it was grinding rocks. when i switched to a canister i tried it and it worked great but the canister made a slight churning noise not anything that bothered me but it bothered my wife when she was trying to sleep so i ordered this powerhead and it works great so great i have to shut it off 3/4 way through my lighting period lol
What do you think of just letting the bubbles go up in the path of the filter outlet? Would that work better?
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Old 04-09-2013, 03:04 PM   #10
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if its a hob i prob wouldnt i tried it with my bio wheel and it sounded like it was grinding rocks. when i switched to a canister i tried it and it worked great but the canister made a slight churning noise not anything that bothered me but it bothered my wife when she was trying to sleep so i ordered this powerhead and it works great so great i have to shut it off 3/4 way through my lighting period lol
And how much bubble production should I be looking for.
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