What are these brown and white things?!?!

[Pixie22]

I found these little brown things growing on my rocks. But now I’m also noticing white parts on them, some of which are a bit longer than others. What the heck are these?

 

[fishguy242]

hi,looks like vermented snails..??

 

[Pixie22]

hi,looks like vermented snails..??

I have this guy in here that’s a snail looking thing with a tube looking head. Did this little B lay some eggs and those are baby ones?!?! I’ve noticed this guy only comes out at night if that’s any help.

 

[fishguy242]

bubble bee snail ,known to eat the vermented..