I am actually thinking about hooking this up to a reef-flo Dart pump I have that runs my circulation. I was going to get a Ocean Clear to do this, but after I found this FX5 on Amazon for $210 I decided to go with it. I haven't seen them this cheap in a while. I hope I made the right choice as I was going to get 2 ocean clears and hook them up with one charcoal and one filtering. Mine is going to be here Thursday so I will let hopefully get it installed and running that day. http://www.amazon.com/Fluval-FX5-Ex...O2PK/ref=sr_1_1?ie=UTF8&qid=1326174899&sr=8-1