Elysia? Or something else?

[fib]

Hi everyone, is this an Elysia or another kind of slug? Is it reef safe (it came with a Clavularia coral, and still sits in the middle).

 

[fib]

Ok, made a better picture... He seems to like algae.

 

[fib]

Did some research and it looks like a nudibranch of the genus dermatobranchus. It feeds on soft coral, so has to get out…

 

[ISpeakForTheSeas]

Did some research and it looks like a nudibranch of the genus dermatobranchus. It feeds on soft coral, so has to get out…

Yeah, I'm getting a little rusty, but definitely an Arminid nudibranch, with my first instinct saying Dermatobranchus. Definitely not a keeper, and good job getting to the ID!