^ What Oddball said. P. clarkii are omnivorous. While they do tend to lean more towards the carnivorous side than some other species, they will readily appreciate (and do require) a variety of food sources (plants, veggies, algae pellets, meat scraps - Shrimp is a no-no though, carnivore pellets, egg shell/cuttlebone pieces, etc). And unlike some species, they aren't very picky when it comes to food so that works out well in terms of what you can buy for them. ^_^