I have a six inch red devil in a 55 gallon tank. I would like to add some other smaller fish that would be too quick for him to catch. A knowledgable guy at my lfs has suggested a small school of tiger barbs, rainbowfish, or even a couple of dwarfs like apistogramma or rams. Do any of these suggestions sound feasible or should I just leave well enough alone and keep the monster by himself?
