Co2 Injection in a nanocube? - The Planted Tank Forum
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post #1 of 3 (permalink) Old 05-29-2008, 11:34 PM Thread Starter
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Co2 Injection in a nanocube?

Hi, I'm having an issue with Co2 injection in my nano cube. I ran the co2 line into the back of the tank, (The tank has a 3 stage filter. Water flows into chamber one through the sponges; over to chamber 2, up through a sponge, bio balls and ceramic rings; then over to chamber 3 where a pump connected to a tube expels the water into the tank.) and situated the Co2 tube at the bottom of the filter; therefore, the bubble has to travel through a sponge, bioballs and rings. This really isn't working so well. I'm slowing the bubble down, but I'm not getting the effect that I want.

Anyone have any ideas? The pump has nothing that I could hook the tube into. Maybe I could buy suction cups and fasten the Co2 tube close to the impeller. I'll have to play with the pump. I don't recall the pump having a lip that I can attach a small segment of PVC to, with drilled hole for the line. Would the pump suck the contents out of my DIY Co2?


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post #2 of 3 (permalink) Old 05-31-2008, 09:05 PM
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Simply buy a ceramic diffusor instead. Running through the filter without any diffusor or reactor isnt disolving much CO2.
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post #3 of 3 (permalink) Old 05-31-2008, 11:45 PM
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Originally Posted by Tony View Post
Simply buy a ceramic diffusor instead. Running through the filter without any diffusor or reactor isnt disolving much CO2.

I agree... You're making life harder than it has to be. Here's a (bad iphone) pic of the ceramic diffusor in a 5.5 Mini M:

Note the Green Drop Checker (using calibrated 4 dKH solution). The Drop Checker is actually a lighter green than this but the iphone keeps darkening the picture.

IIf you're not using a sealed canister, you're probably losing a lot of co2 as the water hits the air before returning to the tank.
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