Quote:
Originally Posted by Myka
Is your tank SPS dominant? If you have any LPS or softies you will have to keep the flow on the lower end of the (4500 gph or so) or you will blow the tissue off the fleshy corals. If you just have SPS or almost all SPS look at two Tunze 6105 powerheads. That's what I'm going to put in my tank once all the LPS are out. They are a good fit for a 90 gallon SPS tank. I will also put my Tunze 6055 behind the rocks to provide flow in that area as well. That's about 8300 gph.
One thing to note, turnover calculations have changed since propeller-type powerheads have dominated the market. Since propeller powerheads provide gentler, wider flow patterns we can get much higher turnover than we could with impeller-type powerheads that provide a very direct, jet-like flow pattern.
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It will be a mixed tank , I will have to ramp up flow as I add SPS later on.