Need help identifying this?

[marsis202]

wonder if anyone has any ideas on what this might be?

Cheers in advance

 

[Sharkbait19]

Looks like a vermetid snail - they release a mucus web that irritates corals. It’s best to break it off and superglue over to keep it from coming back.

 

[marsis202]

Ok thanks very much for your help