No big deal. They fish for food. They're just part of your clean up crew, uninvited. I had way too many of them until I borrowed a purple tang for a month. He ate them all, in between eating the caulerpa I wanted him to get. I was rather sorry. I miss the little fisher-worms. But I agree with you, there's a limit.
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Sk8r
"Make haste slowly." ---Augustus.
"If anything CAN go wrong, it will, and at the worst possible moment."---St. Murphy.
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