The Planted Tank Forum - View Single Post - Off the wall DYI CO2 reactor idea
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Old 01-09-2013, 11:58 PM   #7
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Don't worry about. There's typically enough circulation/aeration with a HOB or canister to supplement plants in a 20 without having to go Rudeberg with DIY CO2. I'd look at and post your other tank parameters such as plant type/density, light, fish load/nutrient levels, and temp.
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