Water flow for SPS

[daniella3d]

I don't know. Technically I should not be able to keep any SPS judging from everybody requirement on flow, but I do keep them successfully and they grow fast too, and I bearely have any flow. I have 2 Koralia Evolution 1050 in my 75 gallons on each side, pointing at each other. There is only a gently flow and some SPS bearely move their polyps, yet everything as been growing steady for almost 2 years now. Birdnest, acropora, pocillopora, montipora etc...all grow well and have great color.

If your water is good and the corals have good plankton and food in the tank to feed on, they will grow even if you don't have the best flow. So it's probably good to have higher flow, but when I tried to put the powerhead more directly at my SPS they retracted their polyps and did not seem to like it.