Personally I take them out. I find larger molts to create quite a bit of clutter in the tank that I have to clean out later. So if I can scoop it all out in once piece I jump at the chance. It will not hurt anything by staying in the tank or attached to your urchin though. That was my favorite part of urchins in pet store, they found all the junk and plastic that should not be in the tank for you. Then you just gently remove it from their tentacles.
Last edited by FitoPharmer; 12-01-2012 at 04:39 PM.
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