tommyfish
Member
I am setting up a new 125 with the twin mega overflows. The tank says it is rated for a 2500 GPH return pump. Although I want a big enough pump to have high flow so I won't need a lot of powerheads. I am looking at the Dolphin ampmaster. Either the 3000 or the 3600, but with the spray bars and returns, and one line going to the fuge. Which one wouldn't overflow the tank. Thank you for any help. Here is a rough diagram of the tank.