The Tunze 6060 is reported to have 1600 gal/h though!
http://www.marinedepot.com/aquarium_....asp?ast=&key=
I also used the Seio 820, but found that the flow rate drops significantly over time. It can take only 1 week for it to drop. At that point i don't think you are getting the reported flow rate, probably something a lot less.
I found the same to be true with the Tunzes, but when I first started off my Tunze it was tooooo much flow rate, & within a week things settled in perfectly.
How do you guys feel about the controller for the Tunzes? Do you think they accomplish the desired alternating current?
Hey RJ, have you ever seen green stuff growing on your tank walls due to the T5's?