I currently run it on a 125 along with an emporer 400. I came home today and the filter was barely pushing any water. I just put new pads in yesterday. Since I got I have constantly have had trouble with it. It stops and does'nt start back up or it clogs up for no reason. Not sure where people think these are so great. But maybe I just got a bad one. Anyhow, pretty sure I'll be replacing it this weekend. Can you give me any ideas. The tank has two lg. oscars.