What is this? Popped out of my rock!!

[ChiTownRomeo]

 

[Mattyfelts]

does it move, either a sponge or nudi?

 

[Sniperhank]

Looks like a nudibranch.

 

[Amitas]

That's a nudibranch, look at the eye stalks

 

[ChiTownRomeo]

Looks like a nudibranch.

I figured that. But he hasn't gone after any corals. Actually this is the very first time I seen him and I search my tank everynight looking for new life. This hobby is amazing. Should I try and get him out or just let him life.

 

[Sniperhank]

Nudibranch will look like their prey. If I was a betting man, I'd say that guy likes yellow sponge... I wouldn't be too worried about him eating corals.

 

[ChiTownRomeo]

Nudibranch will look like their prey. If I was a betting man, I'd say that guy likes yellow sponge... I wouldn't be too worried about him eating corals.

Now that you mention it, the inside of that rock was full of white sponges that just grew and now they are gone....