There is an article on RKM that talks about how flow is actually more important than lighting.
I think I run about 9000 GPH of turnover. Adding Vortech's I noticed an immediate difference in polyp extension and color. Not to mention it looked like a snowstorm when I added them and it wasn't sand, that was how much detritus regular powerheads were missing.
The tank is SPS dominant now … I could never give up my MP40's now … I just can't imagine running a tank without the anymore.
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