Publication2 med aquascape Publication1cs complete | Page 120

Herichthys bartoni have been noted in my own aquariums to display different colour phases, from blue to yellow. Including the spawning dress, they have been noted to display at least five colour phases. Herichthys bartoni initially won’t start to devel- op the striking Tuxedo look until they become either dominant or start pair bonding. Pairs will swim in synchronization along the length of the tank fanning their fins and body shimmering. You can see in the inset photo that the female fish of the pair has developed the black and white tuxedo spawning dress. Sexual dimorphism can be weak in younger fish. My own observations noted that females appear rounder than males and males are more elon- gated and appear to have a much wider caudal fin. 8