New tank

[Majared]

I have a 125 gallon tank. I want to use a sump I made out of a 29 gallon tank. I also have two hydro v pro sponge filters. I was wondering what size pump I should use for the return on the sump. I already have a 600 gph pump. Do I need a bigger pump? I could use two sumps and two pumps bc I have two 29 gallon sumps and pumps. Should I use both or is one good enough?

[rickztahone]

I have a 125 gallon tank. I want to use a sump I made out of a 29 gallon tank. I also have two hydro v pro sponge filters. I was wondering what size pump I should use for the return on the sump. I already have a 600 gph pump. Do I need a bigger pump? I could use two sumps and two pumps bc I have two 29 gallon sumps and pumps. Should I use both or is one good enough?

That pump may work fine. I have a 635gph return pump on my 75g with no problem just to give you an idea. My sump is a 40g however.