Can snails climb out of the tank?

[tony_3a]

Hey guys i bought a clean up crew yesterday for my 90 gallon, its a standard oceanic tank with the black rim around the top. I bought about 30 of the small cerith snails, margarita snails, and the other small type cannot remember the names, Also bought one strawberry top hat snails because i liked the look of it lol.

Anyways i have a little boy about 10 months who is crawling up a storm so im kinda worried about a snail getting out and my kid eating it or choking on it or something. He puts everything he can fit in his mouth in his mouth.

Thanks a lot!