So this is actually for a friend, but since I will be supervising the tank until they get more skill I'm doing my own research. Got a friend whose got a 3 gallon tank with a betta and we talked about her converting it to salt water and me giving her a problematic peppermint shrimp. For stocking I was thinking also adding a nessarius snail and an astrea snail for clean up and also do add things to look at. Anyone have opinions on this? I know it's a small set up and I'm a little worried about the pep going after the snails.