I'm setting up a 90 gallon bow tank, My friends wants me to put a 2 inch drain and (2) 1 inch returns to run the new 1 inch SCWD—Squid—Wavemaker. the main pump he specked out for me to run this is a ReeFlo Dart Pump, 3600 GPH. I'm a little hesitant just cause I feel its a little overkill for a...