Snail Question

[Neilie]

Bought 4 of these snails for my nano tank in the office. Noticed these tiny little guys on the back wall. I’m assuming they’re baby snails. Is this snail a problem snail that over populates the tank. I never had these before ?

 

[Dan_P]

Those white mounds don’t look like snails. Do they move? If yes, maybe they are a limpet.

 

[logibear]

Not sure what kind of snail it is but look more like eggs to me. Unless they move, obviously

 

[Neilie]

Looking at them after all day they didn’t move, I see few more on the other side of the tank with a snail next to it. I added them yesterday morning and I saw 4-5 spots on the outside of the shell of one of the snails. I removed and cleaned all the shells before adding them in. Should I pick all of them out?