Growth on Snail shell - Algae?

[Kane32]

Can someone identify what is growing on my snail shell? It looks like it could be a type of Algae but I'm not sure.

 

[pelphrey]

I have multiple snails with algae growing on them! They dive into it to eat it and start moving it around the tank and it grows on them! I wish I had a picture of one of them, its pretty funny how long some of the algae is on his shell!

 

[reef lover]

Yup just algae.

 

[KJ]

The 3 long tentacle looking thingy`s looks like a sponge.