well you could try prawns, bloodworms, blackworms, nightcrawlers, mysis, beefheart, silversides, shellfish, small crustaceans etc for meat, and vegetables such as carrots, broccolli, shelled peas, zucchini, cucumber, potato etc. You can also feed prepared catfish pellets and algae wafers by many brands. HOWEVER, how much of each of these foods you feed depends on the pleco SPECIES you have, some prefer more meat, some plecos are more vegetarian. some plecos may also need bogwood to survive. you need to find out the species pleco you have