here is the diet info from seriously fish
An omnivorous detrivore. Wild fish consume anything edible they find as they sift through the substrate, although a large proportion of the diet is composed of benthic crustaceans and the larval forms of various insects. Will accept most aquarium foods. Ensure vegetable matter and live or frozen foods form a regular part of the diet.
I feed mine hikari staple pellets, massivore pellets, algae and spirulina wafers, as well as shrimp pellets.