help with ID nudibranch?

Projects with Sam · Jun 15, 2022

Hi, found this in some GSP; any idea what it is?

Projects with Sam · Jun 15, 2022

also, in the second photo there is a worm; is that a baby bobbit worm?

fishguy242 · Jun 15, 2022

@Mibu @Erin1971Texas ??

ISpeakForTheSeas · Jun 15, 2022

Don't know on the worm, but the nudibranch looks to be a Dermatobranchus sp. (not sure on the species - sorry), the genus is known for eating octocorals (soft corals, gorgonians, etc.), so that one is likely a remove nudibranch.

Goaway · Jun 15, 2022

I believe @ying yang had these. I will take a peak at his thread and see. If so, they are probably a gsp predator.

Goaway · Jun 15, 2022

ISpeakForTheSeas said:
Don't know on the worm, but the nudibranch looks to be a Dermatobranchus sp. (not sure on the species - sorry), the genus is known for eating octocorals (soft corals, gorgonians, etc.), so that one is likely a remove nudibranch.

Yup toss them.

Post in thread '300 litre with sump' https://www.reef2reef.com/threads/300-litre-with-sump.823919/post-10108155
Looks identical to his.

May need to do some scrubbing for eggs

Projects with Sam · Jun 15, 2022

Thanks! Will QT that one and the rack it was on. unfortunately it was in my DT for awhile. It was separated from the rest of my GSP but here is hoping.

NowGlazeIT · Jun 15, 2022

Dermatobranchus fortunatus

slugs-taxonomy | Nudibranch Domain

nudibranchdomain.org

Goaway · Jun 15, 2022

Projects with Sam said:
also, in the second photo there is a worm; is that a baby bobbit worm?

Second photo.. Not a eunicid sp. It would look more armored like a millipede. Detritus worm of some kind. Can't fully make out the head.

Projects with Sam · Jun 15, 2022

cool! thanks @Mibu, @NowGlazeIT, @ISpeakForTheSeas & @fishguy242 !

Goaway · Jun 15, 2022

Look up dorvilleidae and see if it matches your worm.

We're always here to help

Projects with Sam · Jun 15, 2022

Mibu said:
Look up dorvilleidae and see if it matches your worm.

We're always here to help

That looks like it! thanks again! I flushed them all

ying yang · Jun 15, 2022

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

Here thread I started with exact same sea slug I had, @Reefer Reboot in one of posts in this thread gave a name in species mentioned in this thread already,they looked similar but not exact.
The link in post 8 in this thread and dermatobranchus oculas looks the most similar to my eyes but again not exact but maybe change as they age idk.

All I know is the green in my gsp wasn't as vibrant as colours I've seen online and the purple mat was only a deep purple on the underside and topside where polpys is was dirty white colour so could be the sea slugs eating it away or I could have a different variety as can get some with a more whiter mat than purple and other variations like shades of green and the white circle in centre of polyp etc.

But I ended up pulling the gsp frag every night for about 3 weeks and pulled off in total around 30 plus sea slugs in various sizes and found some possible eggs once on the gsp also.
After I think a week of having the gsp it spawned also,could that be stress related as the sea slugs eating it and wants to reproduce as scared off dying or just found my tank favourable idk.

But found no sea slugs on gsp for around 5-6 weeks I think I is now and gsp fully open all day long now and not seen any other of these sea slugs on any other corals or rocks anywhere in tank,luckily they quite large so easily seen and also gave a little soft toothbrush on the gsp every other night also,ovbiously best practice would be to gently scrub with toothbrush and remove gsp from frag plug or rock like mine came on and re-attach to clean piece then dip then keep removing and I look in tank after lights out every single night as all the bugs/critters Intrigues me so much lol

Edit: here the eggs of some description on the gsp that I mentioned.