I don't believe there are bad snails, which is convenient, because they're incredibly tough to get completely rid of. But yes, I agree that it's a pond snail and shouldn't do any damage.
If you decide that they're a nuisance, you can reduce feeding, increase plant mass, vacuum the substrate, and/or do manual removal. Do a search for snail traps. Though I recommend the "toss a veggie in the tank and pull it out when it's covered in snails" method of population control. There are also more extreme measures if you're rabidly fearful of, or angry at, snails (this seems to be the case for some forum members), but I don't recommend them.