They're pretty hardy fish. Be really careful about making sure your tank has no "escape routes" they often jump out of tanks.
Mine like bloodworms, algae wafers, shrimp pellets and pretty much anything else. They're very friendly and in no way aggressive. Mine don't eat snails, but I have heard some do, depending on the individual. They dig a lot, and sometimes bury themselves if the substrate is soft. Mine love sleeping on the plants.