id please

[superb]

anybody know what this is?
found it in my year and a half old 150aga.
Thanks

 

[anubisxero]

Originally Posted by SuperB
anybody know what this is?
found it in my year and a half old 150aga.
Thanks
That would be a nudibranch.

 

[superb]

what's he eat?

 

[reefer545]

have you looked at it at night?

 

[ophiura]

Are you missing any soft corals - colts for example?
That is typically what they eat.
https://forums.saltwaterfish.com/t/169000/help-id-please-good-or-bad