I have an 85 gallon planted tank with CO2. My filtration is a W/D filter and a UV sterilizer. I started it as a DSM tank and it has been filled with water and plants for about 2 months. I am going to start adding small tetras (e.g. cardinals, ruby red). How many can I add at one time?
Last edited by scoupland; 07-15-2013 at 12:10 AM.