yes
Yes, snails will 'graze' on aquatic plants and microscopic flora and fauna found on surfaces.
No, there is not a recipe for risotto with baby snails.
Grown up snails
The offspring of a snail does not have a specific name. They are simply referred to as baby snails or snail offspring.
Some snails can self-fertilize, such as Helix aspersa, but not all snails can.
Yes, bettas may eat baby snails as they are carnivorous and will consume small invertebrates.
There is no parental care amongst snails. As soon as the eggs are laid the baby snails are on there own. Its really no big deal.
no, they care for there own
Snails like the assassin snails will eat any aquatic insect slow enough for them to catch. Normal herbivorous snails will inadvertently eat microscopic insects and arthropods when grazing.
Freshwater baby snails look like tiny minature versions of the adult. Marine snails (from the ocean) have several stages, but they're called trochophore and veliger larvae. Trochophores are microscopic, and look a bit like a little bee hive with little hairs at the top. Veliger larvae looks like a snail shell with two parachutes on the bottom.
I've already answered a similar qst. Jst type in : How do snails make more snails and u'll find my answer.
they have about 450.