I had the baffles on her 1500 about half way closed to reduce flow to what my tank seemed to like. Last week I ordered a Pump 3. Tonight it came in and is now running on my tank. The flow is impressive (I think the Pump 4 would have been too much).
It is extremely adjustable and the size is smaller than the Seio. The only negative so far is that it's made primarily of flexible plastic. That doesn't effect its operation but is worth a comment. I'm hoping I like it as well next year as I do now.
Thanks so much Sue! I'll get your Seio cleaned up and back to you on our next Biloxi run (later this month).

Just thought you folks would like to know. Right now I'd give it a thumbs up. It pushes 850 gph on less than 7 watts. Just like adding a night light.