👽🐠"Fighting fish alien" refers to a specific type of hybrid betta fish, called an Alien Betta, which is a cross between wild betta species like Betta splendens, Betta smaragdina, and Betta mahachaiensis. These fish are known for their unique appearance, often with a metallic, iridescent sheen over a dark body and distinctive facial masks and fin webbing. They are popular in aquariums due to their vivid colors and, despite the "fighting fish" name, can be calmer than some domestic bettas, thoug