Can someone ID this please

debdp

Premium Member
I was at Fish Gallery today and saw this nice sponge and thought it'd make a nice addition to my 20g (lps/sps) tank. As usual, now I'm reading about sponges, chemical warfare and I'm not so sure. Anyway, that's another story. Because it was attached to a rock I thought it might be best to quarantine it. Well just a short while ago I took a flashlight and found this guy crawling along the top of the sponge like a snail. It is exactly 1/2" long. Also is a picture of the sponge it came on.

Thanks.
 
Thank you. It is some sort of bivalve. Late last night I saw it moving like a snail and wasn't sure what it was. This morning I watched it more closely. It is a bivalve... fastest moving one I've ever seen. It's in my refugium now where I have a couple others. It has moved from the front of the refugium, climbed over two rocks towards the back at about the same speed as a snail in a hurry to go somewhere. :)

Thanks again.
 
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