Which Powerheads are considered "the Best"?

[Mike Olson]

Originally Posted by Delphinus

What's a Hydor diffuser look like? Sorry, I guess I should know this, I just don't remember and I didn't find any useful hits in the 10 seconds I alloted myself to google it.

Big Als has them and I have seen them at Pauls Aquarium in Surrey. They are a separate attachment that can go on powerheads or even returns. They look like a miniature version of the Tunze stream front and they revolve 360 degrees. THEY are not the little flat piece that come with the maxijets.
Hydor is the manufacturers name
http://www.marinedepot.com/aquarium_...ic.asp?CartId=