Really confused about what pump I need

[Airborne]

I am ordering a 120gal tank that will be drilled for 4 returns. Two on the back wall and two in the overflow.

The back of the tank will be plumbed with two 45 degree pvc and then a T. I know that I will lose about 3 feet of head space due to the angles.

What size Gen X or Iwaki or Reef Flo wipuld be perfect?

Thanks

 

[billdogg]

It will depend on the size of your drain (s), and how much flow you want in your sump. If it is a "reefready" tank, it likely has a 1" drain - good for AT MOST 350gph. a little more info and we can help you make a better choice.