Spiny Softshell Turtle For Sale are one of the more unique species that you’re going to find and they’re a great addition to your pond. They get their name from their soft shell structure, which lacks spiny scutes common in most other. Spiny Softshell turtles quickly learn to come to feeding and will liven up any tank with their antics. They will eat turtle pellets, fish, worms, snails and crayfish. Once four to five inches, they also make good pond turtles. Their shell actually has a leathery feel to it and is light and somewhat flexible hence the Spiny “soft -shell”.