Snails seem to have a sense of fun! They like piggyback rides and you may have also noticed them free falling--letting go from the top of a plant or decoration and tumbling down to land on whatever is below, even all the way from the top of the tank to the bottom. They're not hurt, they're actually playing. When they mature, their piggyback rides will take on a different meaning
. They'll be hanging on more to the side, which will be mating. They can ride around, even tumble around, like that for hours. But for now, your baby snails are just doing what makes kids happy.