My girlfriend and I planted her tank recently but she's been finding snails in it. Not sure what they are but they look like this

Thats pretty close to what they look like. They aren't mystery snails. Anyway we've been removing them and it wasn't too bad but maybe there were some eggs or something in the plants because we are now finding babies.
My question is how to go about removing the nuisance. I can't dose the tank because we will be stocking it with purple mystery snails at some point. It is a 55g tank heavily stocked so I don't think a clown loach would work in that size tank. I'm wondering about assassin snails or if there is any other fish that would work as a snail eater? I'm thinking I should go the assassin snail route because I will be stocking it with snails again in the future but I don't know how assassins reproduce. I don't mind buying just one assassin but if it is pregnant or has eggs to lay then that would worry me because the snails I'm buying for my girlfriend are rather expensive.
So with that said can I get away with one assassin snail and be confident I won't then have it reproduce in some fashion, is it ok to put an assassin snail in there if the current snail nuisance small (since there's only babies showing up can the assassin snail survive on something else like algae wafers or zucchini), and are there any other recommended fish that are snail eaters? I could move my dwarf puffer over there for a bit but I don't know if that is smart. It is a very active tank.


Thats pretty close to what they look like. They aren't mystery snails. Anyway we've been removing them and it wasn't too bad but maybe there were some eggs or something in the plants because we are now finding babies.
My question is how to go about removing the nuisance. I can't dose the tank because we will be stocking it with purple mystery snails at some point. It is a 55g tank heavily stocked so I don't think a clown loach would work in that size tank. I'm wondering about assassin snails or if there is any other fish that would work as a snail eater? I'm thinking I should go the assassin snail route because I will be stocking it with snails again in the future but I don't know how assassins reproduce. I don't mind buying just one assassin but if it is pregnant or has eggs to lay then that would worry me because the snails I'm buying for my girlfriend are rather expensive.
So with that said can I get away with one assassin snail and be confident I won't then have it reproduce in some fashion, is it ok to put an assassin snail in there if the current snail nuisance small (since there's only babies showing up can the assassin snail survive on something else like algae wafers or zucchini), and are there any other recommended fish that are snail eaters? I could move my dwarf puffer over there for a bit but I don't know if that is smart. It is a very active tank.
