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|   I was leaning towards innocent.  You could always put it in the sump. | 
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|   Quote: 
 As a side note I should get some pictures of those bi-valves and see if you guys can identify them, I suspect they are some kind of small clam. They have been on the rock from the beginning, (5 years), but are starting to reproduce more lately. | 
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|   This is a Whelk, a snail that consumes dead livestock on the reef. It will also attempt to attack and kill snails. These are carnivores. I had at least six of these in my 55g reef for the past year, and never had a problem. After acclimating a baby Golden Maxima clam, the next day I found all the whelks finishing off my beautiful clam. They definitely attacked it - as clams are part of their diet - I only learned later. (sigh) NOT Reef-safe at all. It looks like a Nassarius snail!  http://www.melevsreef.com/id/whats_a_whelk.html |