Whats this ? Sea slug/ cucumber ?

[ying yang]

Exact same ones I found on my GSP but they aren’t the GSP eating nudis which are purple with yelllow tips (which I also had lol )

This picture got the nudi in correct ? And not the ones like I got .?
So the ones like I got,what you notice from them,just eat algae/sponges? And not gsp flesh or the gsp tentacles as my gsp tentacles been near enough completely closed for a week now apart from smallest of tentacle just starting to pop out the bud/stolon so to speak or whatever it called ha ha and these slugs I often see there head part next to tentacles that just about coming out

 

[dvgyfresh]

This picture got the nudi in correct ? And not the ones like I got .?
So the ones like I got,what you notice from them,just eat algae/sponges? And not gsp flesh or the gsp tentacles as my gsp tentacles been near enough completely closed for a week now apart from smallest of tentacle just starting to pop out the bud/stolon so to speak or whatever it called ha ha and these slugs I often see there head part next to tentacles that just about coming out

You are correct you circled the GSP eating nudi. I have no idea what the other nudi/slug thing eats but I found them only in my GSP as well and I tossed them , they do look like bunnies haha

 

[ying yang]

Dermatobranchus fortunatus - Wikipedia

en.m.wikipedia.org

This looks close also @Reefer Reboot
Guessing same species as same begginning of name that dermatobranchus

 

[ying yang]

@Reefer Reboot found one more and pulled gsp out of tank and got slug in seperate container,which part you wanting to see?
It's rear end ?

 

[Reefer Reboot]

The whole thing, preferably from a few different angles.

 

[ying yang]

The whole thing, preferably from a few different angles.

Took this video when asked you question what you want picture of,but left slug in coral dip as thought numbers getting less and less so may aswell dip the gsp and when went back to it 10 minutes later I couldn't find it in the empty container pffft but video above shows it all angles plus from post 17 some videos with best video in post 18.but just looked in my rinse water after dipped gsp and found a small eunicid worm or maybe a dorvideo worm and small bristle worm,as noticed the possible eunicid worm ( not sure which kind ) few weeks ago so if only had one and was a bad guy,he now out tank ^_^

 

[ying yang]

Here the little eunicid/ doevidea worm or however you spell it lol

very small eunicid worm ?

youtube.com

And 2nd video when first spotted it.
It's truly amazing the amount if life with all the micro fauna and macro fauna we get in reef tanks compared to freshwater ^_^

 

[Reefer Reboot]

No still camera with macro lens? That's okay. Take a look at the following links for verification,

And now I'm tired.

Today is the last day of diving. Three dives. To be honest, I’m fine with it. I can’t keep up with my blog and IDs and I’m just tired. I...

nudigal.blogspot.com

Dermatobranchus albus

Dermatobranchus albus from School Beach on 08 April, 2015 at 02:17 AM by Terry Gosliner

uk.inaturalist.org

Dermatobranchus sp. 10 | Nudibranch Domain

nudibranchdomain.org

File:Dermatobranchus albus 3.jpg - Wikimedia Commons

commons.wikimedia.org

TAWALI PNG Nudibranchs May 18-25 2013

And I also found that this has been asked before here,

Sea slug?

i just got a mushroom rock today and found what I think is a White Sea slug it has no shell and has two black eyes it also has what looks like a white foot under it. It is about 1 inch long. Please let me know if you know what this is and if it is reef safe or if I should remove it. Thanks

www.reef2reef.com

 

[ying yang]

No sorry no camera with macro lens,haven't even used a camera in around 10 years or more,just use phone to take pictures on holidays .
But your id of dermatobranchus albus is a very good one and would say yeah thats it.
So thankyou for your time id'ing it for me and linking all the articles ^_^

 

[SlugSnorter]

Removed 5 or 6 when got it,all bout same size,then week later another 7,then 1-2 every few days so probably around 25 removed so far in the 3.5 weeks I've had the gsp,when I'm seeing these it's after lights out and they on top of the gsp and not underneath where the sponges are and would be,there was some blue tubular sponges/ tunicate things underneath gsp when got but removed them also.
If I knew they just are sponges then would leave them be but as unsure and keep finding them on top the gsp mat ( which isn't deep purple like the underside and isn't bright white variety gsp mat) so I don't know if eating the actual mat and that's why not deep purple or stressing the coral that much its lightened or what idk,after 2 weeks of gsp been fully open,this last week it remained completely shut but me taking it in and out to remove these slugs could be part of reason.
Not found any for 3- 4 days now but last few times I've found some,some was miniscule,thought was grain of sand at first till zoomed in on phone,but only seeing them on gsp and nowhere else in tank,so hopefully they only eat gsp so they contained on it so easily removed I guess

If they were eating the GSP they would likey have similar colaration to it

 

[ying yang]

If they were eating the GSP they would likey have similar colaration to it

Yeah I've read that alot in articles and threads that nudis,slugs often go the colour of what they eat,and blend in nicely then.

 

[SlugSnorter]

Thanks for reply,sorry for late reply,been away for easter weekend, just googled name you said and very close match,couldn't find any of colour ones I had,but as you said lots of colour variations.
I removed all the ones I could find on the gsp frag ( after a few hours in tank) but one thing I know for sure,the amount of different species of all different kinds of micro/macro fauna in our tanks astounds me,find it extremely interesting and probably get more enjoyment out of them ,than the fish/ corals ha ha
Maybe I should of done a macro algae dominated tank with one or 2 fish or no fish ha ha

If they are beginning to look more similar to the GSP, then they could be a Stolonifera nudi. They are from the Indo-Pacific and some feed off soft corals.

 

[SlugSnorter]

Yeah I've read that alot in articles and threads that nudis,slugs often go the colour of what they eat,and blend in nicely then.

they are also very specialized, and many can only feed on a few species and nothing else.

 

[ying yang]

If they were eating the GSP they would likey have similar colaration to it

The Sea Slug Forum - Dermatobranchus albus

www.seaslugforum.net

I read stuff like this ( in screenshot I took from article) saying other dermatobranchus species known to eat soft corals so enough for me to think it is and get them out when see them.

 

[SlugSnorter]

The Sea Slug Forum - Dermatobranchus albus

www.seaslugforum.net

I read stuff like this ( in screenshot I took from article) saying other dermatobranchus species known to eat soft corals so enough for me to think it is and get them out when see them.

Is this from sea slug forum? I miss sea slug forum...

slug could just be Dermatobranchus Sp. doesn't have to be an Albus. I would remove them yeah.

 

[ying yang]

Is this from sea slug forum? I miss sea slug forum...

slug could just be Dermatobranchus Sp. doesn't have to be an Albus. I would remove them yeah.

Yeah from sea slug forum.link is in my last post.

 

[SlugSnorter]

Yeah from sea slug forum.link is in my last post.

Sea slug forum is an archive, the actual forum posting functions went down a while ago.

 

[ying yang]

Sea slug forum is an archive, the actual forum posting functions went down a while ago.

Aw sorry ,me and tech don't mix at all.im still confused why all say all different forums on r2r ha ha,I get there different sections but I just thought r2r was the forum lol and no clue what a stickie is pffft