I use eheim 1260 from my sump to tank as return and they are whisper quiet and give great flow, one tank setup for 10 yrs w eheim return, never one issue, the best in my opinion. I am currently looking to try the Eheim needlewheel for my 180 vertex, the only pump I will ever consider! See my previous post I tried Mags and other pumps not worth the noise and cannot compare to Eheims. As always they are worth the extra cost if you want quality and reliabilty.