Stuart1962
Member
Can anyone identify this critter? Some kind of sea slug, don't know if it's harmful or not.
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Can anyone identify this critter?
- Thread starter Stuart1962
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Stuart1962
Member
Cheers BigAl, definitely looks like the Black Doris
Stuart1962
Member
So should I just leave it in there as I don't have any sponges?
Mike Johnson
Well-Known Member
Could be a Scutus sp. Catch it and positively identify it if you can.
I'm not saying it can't be Scutus sp. but I've yet to see one with the red line around the perimeter like the one in Stuart's picture. That was my main clue to ID it as Dendrodoris nigra because they often (not always of course) have the red perimeter line.
I don't think I would take it out unless it's a small tank. Odds are when it "Expires" if your tank is stable and healthy it will just go back into the food chain. Now if we're talking about a smaller tank (say 12g) I'd probably take it out and possibly trade it at the LFS.
Mike Johnson
Well-Known Member
Your eyes or computer resolution must be better than mine, BigAl. I'm not saying get rid of it, but I've learned the hard way. Don't take pictures when you see something unidentified, catch it, put it in a specimen container, then take pictures. Memories of a polyclad flatworm that I took pictures of, then quickly retreated under the sand bed and continued to kill snails for years comes to mind.