A few days ago I bought a stock tank (about 100 gallons), an akwa-lung system, and a utility pump (pumps around 1300-1400 gph). Last night I went out and caught a bunch of bluegill (about 30 3-5 inch size) and one bullhead. They were very lively about an hour ago... then I checked them a few min. ago and they were all dead. Every single one. They acted pretty lively until I checked it a few min. ago so I'm thinking they were getting enough oxygen. I noticed they were all down by the pump though. The bullhead had its guts hanging out like it was sucked out. I think the pump I have is so strong that it sucked them all up to it and killed them. something happened when they were all sucked up against it too... water started coming out of the hole on the oxygen infuser and half the water was pumped out of the tank in my garage:angry:. Anyway, have any of you had this problem???? I'm thinking I need to section my pump off from where the fish are so they don't suck up against it.