CO2 line into HOB - The Planted Tank Forum
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post #1 of 3 (permalink) Old 02-01-2013, 02:24 AM Thread Starter
Algae Grower
Join Date: Oct 2012
Location: Near Cleveland
Posts: 66
CO2 line into HOB

I was wondering if anybody has heard of anyone successfully Running a DIY CO2 line into a HOB filter. I am trying to eliminate as many lines into my tank is possible. What enough CO2 get into the water and tank to make this worthwhile? Or is it a much better idea to continue continue to run the CO2 directly into the tank. I had a powerhead running next to my DIY CO2 which moved it throughout the tank. I have since added shrimp and removed the powerhead because there was too much flow. Now my CO2 is on the opposite side of the tank as my HOB filter. Should I just move CO2 to the same side as the filter so the moving water circulates the CO2? Or can I directly inject the CO2 into the water in the HOB filter? Thanks for the help.
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post #2 of 3 (permalink) Old 02-01-2013, 02:29 AM
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Join Date: Apr 2009
Location: Los Angeles, CA
Posts: 411
CO2 line into HOB

The aquaclear has a small hole inside where I just stick the airline and it works great!
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post #3 of 3 (permalink) Old 02-01-2013, 03:24 AM
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Join Date: Jan 2013
Location: Oregon
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I've done this before with an AC20 and it works good well. You'll have some noise since the bubbles will be hitting the impeller - I'd suggest you use a very skinny air stone and make sure to build a bubble counter so no yeast builds up at the end of the tube and clogs/infests your filter.
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