Unknown pest?

[bujibanton]

Sorry for the poor picture. Does anyone know what this is?


It’s appeared today not seen it before. Looks like half a sea urchin but isn’t. Haven’t added anything to the tank for months so no new chances of introducing anything.

It’s black bodied with black/pink spines. Doesn’t move.

Any ideas would be appreciated.

 

[Phil077]

Looks like a Nudi to me.

 

[bujibanton]

Thanks Phil. Don’t think its a Nudi although it does look like it from the picture. I’m thinking it is an Urchin. [emoji51]

 

[jim_fitz]

looks like an urchin to me too