Water Movers
Water Movers
From what I've read, and I'm sorry but I can't remember the source, but apparently the Panta Rays don't have the reliability one would expect. If I remember the source I'll post it back in this thread.
Tunze is probably the best bet if your OK with wires in the tank. I'm personally a Vortech guy because I try to keep as many wires as possible out of the tank. I also don't like the closed loop concept because of all the additional holes added to the glass.
Seaswirls might be another viable option depending on your plumbing. I really like how they work but my plumbing would have made it awkward to work.
I haven't found a single perfect option for water movement. Each has its positives and negatives. What it really boils down to is whats most important to you.