I have a 240 gallon 8x24x24 tenecor tank that me and steve are putting together and we are trying to figure out the best way to do a closed loop. I have ordered a Dolphin 2700 it is rated at 2900 gallon per hour at 6 feet. I was think about putting the returns at the top of the tank next to the trapezoid returns and putting the returns in the trapezoids next to the factory returns. What do you guys think? By putting the returns in the top of the tank 2 centipede returns 3/4 inch each centipede being split into a "Y" with a flared nozzle, and having a 1" return on each side.