The GloFish is a patented and trademarked brand of genetically engineered fluorescent fish. They have been created from several different species of fish: Zebrafish (Danio rerio) were the first GloFish available in pet stores, and recently tetra (Gymnocorymbus ternetzi), tiger barbs (Puntius tetrazona),[1] Rainbow Shark (Epalzeorhynchos frenatum), and most recently betta[2] have been added to the lineup. They are sold in many colors, trademarked as "Starfire Red", "Moonrise Pink", "Sunburst Orange", "Electric Green", "Cosmic Blue", and "Galactic Purple", although not all species are available in all colors.