[Poly Rugby]

Hi all,

I've just built a new 15g sump/refugium for my 46g. I am looking to buy a return pump but don't quite know what to go with. The return has to go about 4 feet high. How much flow do i need going through? Please direct me to a decent pump that will get the job done well. I'm a college student, so money is kinda tight and the most economical choice would be appreciated.

Thanks for reading