Yea, it has a 500-600gph pump in it, which is replaceable. I wish I had it plumed to my fines filter thou, but for a quick fix it works. Just cut down some branches so the pond get some sun so hopefully it warms up and the fish wake up. Its 57*F so I think the fish went back into sub hibernation and arnt really hungry. It should get wormer now which im excited about. Seems to be clearing up. Its not grean, more brown from all the crap falling it it. I posted 2 more vids in the 'need a floating skimmer' post. Good thing is the pumo is totally removable so I can replace it if it dies or figure out how to plumb it to another pump that would send it to my fines filter, but would have to figure out boyance. Good purchase for for $50 IMO.