on a 75 gallon tank. bettatail built me a great unit and I need to figure out reactor: I could just buy the frora sera, or build a cerges but was think of a 20" housing instead.
building a cerge reactor:
but instead of using the 10" filter housing, using a 20" filter housing:
he will sell me one unit for $37 shipped. I could then ad a pump to it or may just try it with a sponge inside to stop bubble from escaping.
any thought on which way to go?