07-30-2011, 12:23 AM
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I have a 20 gallon planted tank that has plants with browning leaves... Also a plant that somewhat needs CO2.. regardless of the situation, getting CO2 is what I was planning on getting anyways. However, I dont know what I should get... Petco/petsmart have a CO2 system with a fermentation chamber.. and is by far the cheapest that I've found. I just wanted to know if anyone has used this system and if it's any good. If someone has a cheaper or a better system that is cheap to maintain.. please feel free to share!