As I've posted elsewhere, I'm planning on getting a sheltopusik. Since snails form a large part of their natural diet, I'd like to be able to provide it with live snails as a food, in addition to the more run-of-the-mill feeder animals. The catch is, I don't really have any way to get live terrestrial snails where I live. Several varieties of aquatic snails are regularly sold at pet stores, though. If I set up a breeding colony of either ram's horn or apple/mystery snails in a spare tank, would those be an acceptable food source? Also, if aquatic snails are an acceptable food source, would it be better to give them to the lizard in a regular food bowl, or present them in the water bowl so they stay wet? On the one hand, I'm concerned that when out of water, the snails would retract into their shells, and not present as appetizing of a target to the sheltopusik, but I'm also not sure if foraging in a water source comes naturally for sheltopusiks.