do i need a powerhead

[reggie1273]

do i need a powerhead for my 125g fowlr tank if so what size (gph)

[mrwilson]

Probably. What kind of flow do you have from your return line from your sump?

[flameangel88]

A quick way I use to see the flow is put some flakes in and watch how it flows around the tank (before the fish eat them all) or if it just settles in one spot. If it settles in one spot then you'll need addition flow.

[marcrunner]

I think a book on marine inhabitants might be a better bet.