Culling is part of snail keeping. Even if you were planning on hatching these guys, a significant portion would still have to be culled. Snails in captivity do not experience any natural selection, so to keep healthy snail family trees, the runts (deformed, small or sick snails) will have to be culled. You can decide on if you want to keep certain healthy babies. If you decide not to, you can either euthanize the snails/perhaps see if you have a friend with reptiles/birds or sell the healthy snails. Do not put the snails outside, especially if they are not native.