help with the gph

[goosetavo5]

How many gph do I need for a return pump from sump to display tank with a height of about 55 inches

 

[46gReef]

What do you plan on keeping?

 

[gacolt]

what size tank?

 

[Reefing Madness]

What is the overflow rated at? Thats what we need to know. Your return should only match your overflow, after headloss.