Hitchhiker snail on Euphyllia colonies

[Dutch_Mill]

Any ID on these?

 

[EeyoreIsMySpiritAnimal]

They look like bad ones to me... I'd keep them out of the tank.

 

[kjkszpj9]

That one just screams whelk to me.

 

[Dutch_Mill]

That one just screams whelk to me.

I think you're right. I'll drop it in my coral graveyard tank. There's some other whelks there feeding on all de colonista's and dove snails breeding like rabbits.