How much circulation/water movement for my tank?

[Chris918]

Hey guys. So I have a 20 long and I'm hoping to start a soft coral tank with fish. I have several circulation pumps. How many gph should I aim for? I have a Fluval CP2 (425 gph), a Fluval CP1 (265 gph) and a marineland moxi jet 400 (500 gph or 110 as a power head). What combination would be best for the type of tank inhabitants im going for?

Thanks so much everyone

 

[mcgyvr]

20-30x display volume for total circulation in a tank should be just fine..
More usually isn't a problem either as long as you don't go crazy and blow them over..
Some run 75-100x for SPS tanks as they like plenty of flow to keep their tissue clean..

 

[Dmorty217]

+1^ I would shoot for 6-800gph total and see how you like it and dead spots/low flow and try to adjust powerheads accordingly. You can always add another powerhead or a single larger one if need be