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Originally Posted by FFrankie  I have a few in my reef. I am not sold that they benefit the coral yet. I do see them cleaning up the fish food particles that get stuck in the coral but i am also wondering if there rubbing off the tissue in areas on my acro's. I hope someone with more experience chimes in on this thread. Maybe Cheeks? |
There is some folks that say that the crabs may munch or pull off some of the coral mucus. Personally I find them too small to observe that type of behavior in my tanks. One thing I know they don't do is prevent red bugs...