Today there are 12 lines—species and color combination—of GloFish, including tetras, zebra fish, and barbs, in such colors as Electric Green, Moonrise Pink, and Cosmic Blue. The fish appear bright under normal white light and fluoresce brilliantly under a blue light.
The GloFish is a patented and trademarked brand of genetically engineered fluorescent fish. A variety of different GloFish are currently on the market. Zebrafish were the first GloFish available in pet stores, and are now sold in bright red, green, orange-yellow, blue, and purple fluorescent colors.