omensev
Member
Hello hello! Im looking for a little input. Im running a flood and drain setup with 20ft 6" PVC pipes. Each pipe has a 40 gal res. Currently I have a single air stone in each reservoir, my question is, should I have multiple air stones in each res? Obviously, the more o2 the better but whats a good number? Is there a calculation or rule of thumb? Thanks er'body