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Sure looks like a nudibranch to me. I have no idea what kind or if it’s reef safe. Hopefully someone will. If nobody knows, I would assume NOT reef safe.
Jared Bryant
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When in doubt always take it out. You can keep it in a separate container until identified.
snoopsreef
New Member
It must have come in on a frag but I always dip my frags so a little confused how it’s got in. All my rock was brand new dry rock
Actually, I can't see any of the feathery gills you'd typically find on a Jorunna nudibranch on this guy (though they do share some resemblance). It looks more to me like a Dermatobranchus spp. which are known for eating octocorals (softies, gorgonians, etc.).
ID'ing them down to the species is a bit of tedious process for me (and sometimes I can't get a confirmed species), but here are two recent links from people with similar (if not the same species) nudibranchs (tentatively ID'ed as Dermatobranchus fortunatus, though I'm not sure the rhinophores are right for it) that were alleged to be GSP eaters.
www.reef2reef.com
Personally, I'd say sump it with some GSP and sponges and see if you can confirm the genus/get it eating, but that's just me.
ID'ing them down to the species is a bit of tedious process for me (and sometimes I can't get a confirmed species), but here are two recent links from people with similar (if not the same species) nudibranchs (tentatively ID'ed as Dermatobranchus fortunatus, though I'm not sure the rhinophores are right for it) that were alleged to be GSP eaters.
Whats this ? Sea slug/ cucumber ?
Just found 3 of these sea slug/ cucumber/nudi looking things. Hasn't got the frilly Gill things that nudis have on their back so probably rules that out. It's on a gsp that just bought and camouflage quite good same colour as top of gsp frag like browny/ white,2 are very small like 8-12 mm long...
www.reef2reef.com
ying yang
2500 Club Member
Yeah looks very similar to what came in on my gsp the other month.
Thread shared above.
Some good info in the thread .
Got told some kind of Dermatobranchus Albus sea slug
Seen quite a few these threads lately since I first found mine.
I pulled about 25-30 off in first 2 weeks since first spotted mine on gsp ,then about 4-6 weeks and couldn't see any,then only last week found another 2 one day and 3 the next day,but bot found any in last 5 days.
Good thing about these are they quite large and can see with naked eye and just remove with tweezers
Thread shared above.
Some good info in the thread .
Got told some kind of Dermatobranchus Albus sea slug
Seen quite a few these threads lately since I first found mine.
I pulled about 25-30 off in first 2 weeks since first spotted mine on gsp ,then about 4-6 weeks and couldn't see any,then only last week found another 2 one day and 3 the next day,but bot found any in last 5 days.
Good thing about these are they quite large and can see with naked eye and just remove with tweezers
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