perfectly normal... as he gets larger he'll change even more. I've seen ones that you would swear were two different fish, when in reality, one is the baby version of the 'other'! maybe some shrimp or something like that could either make him retain or intensify the red/orange.
A forum community dedicated to Aquarium owners and enthusiasts. Come join the discussion about collections, displays, product reviews, accessories, classifieds, breeding, health, behavior, housing, care, and more!