These 3 are older fish. 6 or 7 years old. They have been run ragged by my Sohol - so they aren't in perfect condition. They each have some signs of lateral line disease - age and diet related when they were younger. They eat nori, Spectrum dry pellets (recommended for lateral line disease) and frozen. The 3 get along pretty well - not perfectly. Would be a great 3some for a larger tank.