Is a Water pump thaty pumps 850gph too much for a 56 gallon tank?

[ashley84]

Looking to get a Hydor Koralia Pump that pumps out 850gph...they have a 400 600 and 850..but i can get an awesome deal on the 850..?
I'll have coral and fish in tank so dont want TOO much water flow...thoughts?

 

[nemo22]

i have 2 number 4s (1200 gph) in a 100gal. they work great.

 

[ashley84]

so should I go with a 600gph or a 850?

 

[scsinet]

Personally I'd go with the 600 models in your tank.
I may get strongly rebuked on this one though... lots of folks use really big powerheads in their tanks with good success. I personally err on teh low flow side.
I put a #4 (1200) into a 120 and it was more flow that I could control... I had to turn it off. I've got two #4 units in a 180g reef though and they work well.
IMO it's always better to end up undersized on powerheads and have to buy another than to buy ones that are too big and be stuck with powerhads you can't use.