What are these guys that came in?

[carpetlover]

So I can ID one is a hermit crab, but not sure what type it is. Second snail looks like a small whelk but I’m not sure. Are they both ok? Nanotank.

 

[carpetlover]

Hermit has black legs, no fancy colours

 

[Sharkbait19]

I think they’re both fine. I had a hitchhiker snail and it turned out to benefit the tank. That looks like maybe a cerith?? The hermit crab is also fine. I have a few with black legged crabs that were bought as blue leg hermit crabs, and they’re pretty much the same.