Helena snails offspring?

Hello,
We've had an aquarium with four adult Helena snails for four years. Now, after four years, we've suddenly discovered 16 baby Helena snails with small shells, which we obviously can't keep all of. We're wondering where we could put them later, and whether there are any dangers or whether they'll be eaten? We also have bristle catfish, black mollies, guppies, platies, and neons in the aquarium. Perhaps you have experience and can give us tips!

Thanks!