ok im seriously considering getting the tetratec ex 700,now my question concerns the spray bar,has it got to go above the water line,if it has then that would be a problem,or are ther external filters that work in a different way,one final question how long are the spray bars,reason for the questions are because my tank has a middle support brace,which is slightly above the water line,hence the question about spray bar being above water,as always any help much appreciated
mister-t
mister-t