Dedicated feeding stuffs can be employed to feed crystal red shrimps, such as frozen akamushi (Readily risked and infected with bacteria, not recommended), kelps or cook-done spinach. Actually, spinach is exactly one of favorite foods for crystal red shrimps. Spinach can be fed once or twice a week. If shrimps do not like spinach, it means water quality has been deteriorated and it is required to replace with new water immediately.