quietest return pump

[sphelps]

Originally Posted by mr.wilson

The Eheim Hobby Pump is equally as good as the Red Dragon, but unfortunately they aren't offered in higher output. The Aqua-Medic Ocean Runners are also quiet and reliable, but limited to 6500LPH and the impeller shroud is made of brittle plastic. The Deltec Intervall series is supposed to be very good, but Deltec USA doesn't supply them. http://www.deltec-aquaristic.com/

Until something better (stronger) comes along, I use Poseidon pumps for return pumps even if I have to use two of them. They are available as pressure or volume pumps, dead quiet, and no significant heat transfer. They run at about 130F externally.

Absolutely, the eheims are good pumps but unfortunately don't meet everyone's flow requirements like you said. I don't have experience with the other pumps you mentioned but maybe it's hard to find a real comparison because it doesn't exist. Making a high flow magnetically driven pump that runs quiet and cool just might be difficult which would explain why prices are high.