I'm new to this but from my understanding they are living in the rock or there could be eggs in the rock. I was kind of excited to see something living come out, but now I'm nervous about them. I can't find the one from this morning but there is another on my back wall. The guy I talked to at the fish store said he's never had a problem with them eating corals but they can multiply pretty fast. He mentioned a harlequin shrimp to eat them if they got bad. That is a really cool looking shrimp, but not sure about having to feed them starfish after they rid the tank of these. Anyone have experience with a harlequin?
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