our tank is fairley new we just upgraded so we did add some live rock.as for the snail shells it is at the back end, and what ever did it, has sawed the end perfectly off. it almost is right in half. there is only one shell that has a small whole that looks like it has been drilled. all these shells were in a perfect pile at the base of one of my rocks. also i had a yellow headed jaw fish and he has been living in his house he made for a long time. then one day he moved and i wasnt sure why, and now he is gone, but the shells are piled up at the back of his house, so i am wondering if something didnt kick him out. thoughts?
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