Minecraft wiki entry for Tropical_Fish, associated text: Tropical fish do not have common varieties in Bedrock Edition. Instead, naturally spawned tropical fish have 2 spawn attempts, the first chooses one of the 22 preset variants, and the other will use randomly chosen patterns, sizes, shapes, and colors (except black) Tropical fish spawned from a spawn egg will use randomly chosen patterns, sizes, shapes, and colors (except black). By using commands, tropical fish may be spawned as one of the 22 preset variants.