Mosquito fish Gambusia sp are cheaper and more hardy them guppys and molies Other small foods like earthworms, grass shrimp (only very small ones), good quality bloodworms and mosquito larvae, soft insects and even litle bits of meat and reptomin soaked in water will be taken Remenbar extreme water quality (use discus water quality as a model to follow for both quemistry and temps), shallow dephs and lots of hidding places are key points to keep this guys alive and triving. Never feed to much at once(if need be feed several times a day in litle porcions) or fish bigger then the distance bethween the turts eyes.