What good powerhead should I get for my 72g tank?

NJ - depends on how much current you want. I went with a Maxi-Jet 1200 (295gph) to drive my undergravel jet system.

The Saltwater folks on another board spoke highly of Maxi-Jets for reliability (many of them use them submersed to create extra flow for thei corals and live rock)
 
Thats the thing, I'm not sure if I really need it because I don't know how much everything is circulating now. I have an 11.1 turnover rate, that's prety much all I can tell you. In your opinion, do I need one?
 
Originally posted by NJ Devils Fan
Thats the thing, I'm not sure if I really need it because I don't know how much everything is circulating now. I have an 11.1 turnover rate, that's prety much all I can tell you. In your opinion, do I need one?

You're circulating nearly 800 gph? What are you keeping in the tank?
 
I have a 72 gallon also ,with 3 large Dempseys that are messy eaters . I run 2 magmun 350s and 3 penguin 1140s ( just for moving water) . That is 1600gph per mfg specs. None of the other fish Bala sharks ,Earth eaters or the small columbian teras seem to mind .
 
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