It's on one of the snail I got today. It behave like a Feather Duster. When I point a light on it, it immediately hide back into that tiny hole!! Is it a fan worm?
looks like a feather duster. Thats cool. Keep a eye on it in case it isnt. I have seen aiptsia on a snail before. That doesn't look like aiptsia but watch it just in case.