Sps Flow?

[michika]

From what I have seen:
Low flow - slower growth, some corals only extend their polyps at night or after feeding time. I also see thiner branches, and more spindly looking growth. The corals are also more delicate and easier to accidentally break.

Med-high flow - influences HOW the coral grows, which directions, and how thick the brances are.

High flow - you can literally blow the flesh off the coral if its too high. Although if its not too bad, I have seen more rapid growth, larger encrusted bases, and different colors in some species.

I personally don't see a big correlation between polyp extension in high flow and lower flow areas of my tank, but I have seen it in others' tanks.