im trying to decide what kind of filtration i should use for my 75g african tank. im going to have about 12 peacocks, a pleco, and a syno cat. im looking at either a AC110 and AC70 or a Eheim 2217 or a wet/dry. it would be my first time making a wet/dry but i think i understand what i need to do to make it work except figuring out what size of a return pump.