Snails/crabs hurt coral?

[clancaster23]

I have two polyps in the tank and have noticed my snails crawling on top of them once in a while. I noticed that they will close up but is the snail hurting them in any way?

Also noticed that my hermits and two emeralds can be seen sometimes around them but it looks like they are just getting stuff in between the heads. Do they pose any danger to the corals when they crawl on them or pick in between them?

 

[Hiker4twenty]

Nope, they're not hurting or damaging them in any way. It's perfectly fine.

 

[clancaster23]

Good to hear. I was worried they were doing something to them. Thanks.

 

[AmberSunrise]

I have seen my crabs pinching around my corals and snails hurdling over them causing them to close but I think they are just eating junk they have never hurt the corals at all.