A lot of fish are compatible with discus as long as they tolerate high temps.
Cardinal tetras, diamond tetras, lemon tetras, beacon tetras, Congo tetras, scalare angelfish, altum angelfish, bristlenose, apistogrammas, rummy-nose tetras, cories, etc..
I don't keep cories though but I keep 10 kuhli loaches. I have them for almost 7 months already.
forum community dedicated to tropical fish owners and enthusiasts. Come join the discussion about species,breeding, health, behavior, aquariums, adopting, care, classifieds, and more! Open to fish, plants and reptiles living in freshwater or saltwater environments.