Teelie
Fish Aficionado
I've got an Eheim and a Fluval. The Fluval 304 is on a 55g and the Eheim is a 2232 on a 30g. Both are quiet, both are well set up and both are reliable. Where they make a difference so far is cost. The Eheim is more expensive but I like the outflow and 360° swivel of the tube connections which help make up for some of the cost. It's a very tough call for me. The Eheim just edges out the Fluval IMO. If you're on a budget, then the Fluval will work quite adequately.