So I got a 10g custom acrylic sump for free, but it didn't come with a pump. This is my first sump so I'll be needing some help on the proper pump. It's a 15g cube, and the sump will be going under it in the stand. Now...From sump to tank, I'm looking at approximately 3' of head. I want a pump that will add nice flow to the tank, because all I'll be using for flow other than the outflow is a small powerhead (maybe 250gph) Can anyone recommend a nice ($$$ friendly) pump?