60g Cube - Flow Question

[n1ack]

Hello everyone, I am getting a 60g acrylic cube made and have no clue about the flow.

I asked them to build the overflow to hadnle 500 gph minimum, then I wanted to do a closed loop (drilled), I was thinking like 300 gph pumping thru that on a SCWD. How many drain holes should I do? 1 with 2 returns? I honestly don't know.

Also you think a minimum 800 gph is enough for a 60g cube, it is going to be mostly a mixed tank with a lot of LPS/Softies with some SPS (nothing to hard to mantain).

Thanks - n1ack.

[bertoni]

That flow should be okay for a reasonable range of animals. I would just have one input for the closed loop and two outputs, plus one overflow and drain.