Hitchhiker snail?

[bensoo00]

Couldn’t get a better picture, it was on a galaxea frag and it is a snail I believe. White body in the shell.

 

[WyoReefer92]

The pattern on the shell looks like it resembles that of a baby trochus snail. If so they are very good for your clean up crew. And if you get a handful of them they love to reproduce in your aquarium! Look em up!

 

[EeyoreIsMySpiritAnimal]

Possibly a collonista

 

[kjkszpj9]

Its either a baby trochus histrio or a collonista snail, i cant really tell its shape but trochus is pyramid shape and collonista is round