Hi! I have a 20 gallon tank with mollies, platys, a albino bristle nose pleco, and two nerite snails. Today I came home to both fish fry (I’m not sure if they are mollies or platys, and I am not removing them because I do not care if they survive), and at least one baby snail. I’m not surprised by the fry, but I’m confused about how the snails had babies. I thought Nerite snails couldn’t reproduce in freshwater. The only salt that has ever gone in the tank is aquarium salt, and not a large amount of it. Is this just super rare and a one time thing or could I end up with a lot of snails?