Id please

[susanvdstel]

Anybody a clue what this wil be when it grows up ?

 

[Tahoe61]

It's a nudibrach. Have you added any new corals or macroalgae? It's difficult to tell if it's a good guy or bad at that angle.
@Crabs McJones

 

[Crabs McJones]

Would have to see the other side to positively ID, definitely a nudibranch
Did it look like this?

The Sea Slug Forum - Nudibranch ID help

www.seaslugforum.net

 

[susanvdstel]

It's a nudibrach. Have you added any new corals or macroalgae? It's difficult to tell if it's a good guy or bad at that angle.
@Crabs McJones

New coral indeed. It has a white head and his body is grey/brown on top. Its only 1,5 cm atm

 

[susanvdstel]

Would have to see the other side to positively ID, definitely a nudibranch
Did it look like this?

The Sea Slug Forum - Nudibranch ID help

www.seaslugforum.net

I dont have photos from the otherside yet. Will see if i can make some tomorrow when the lights are back on.

 

[Tahoe61]

What kind of corals?

 

[Crabs McJones]

did it look something like this? https://nudipixel.net/photo/00004803

 

[susanvdstel]

What kind of corals?

Lobophyllia and goniopora yellow

 

[susanvdstel]

did it look something like this? https://nudipixel.net/photo/00004803

Yes but with white ears and diferent tail

 

[Crabs McJones]

If it looks like that it's not reef safe. try and remove it next time you're able to locate it

 

[susanvdstel]

thanks guys we removed it from the tank

 

[ISpeakForTheSeas]

Would have to see the other side to positively ID, definitely a nudibranch
Did it look like this?

The Sea Slug Forum - Nudibranch ID help

www.seaslugforum.net

Agreed with Dermatobranchus sp. - an octocoral eater.