Decorator Crab Decorations

[Apollo7235]

Hi there all,

I’ve had this decorator crab for a few months and it has some serious coral/sponge growth on its shell which has really taken off since I added it to the tank.

Can anyone she’d some light on what kind of coral or sponge this little dude has growing on its shell?

 

[dakoop]

I can't answer, but I am also curious

 

[Apollo7235]

Bump

 

[DaJMasta]

Could be a colonial tunicate. The ones I see on rocks usually are somewhat clear, so you can see more clearly each individual mouth, but if the flesh is just opaque yellow, a colony of them could look just like that.

 

[monkeyCmonkeyDo]

I agree that's a type.of tunicate.maybe.
D

 

[i cant think]

I agree with the above two on it being a tunicate or spongode species.

 

[Apollo7235]

Here are some more photos—there are a few different kinds of whatever it is.