Orange GLO Zebra Danio (Danio rerio)

Danio rerio was the first species genetically modified into a GloFish, developed for pollution-biosensor research before the same fluorescent-protein tech became a commercial pet, so this orange line sits close to where the whole product category started. Every bit as fast, hardy, and restless as a wild-type zebra danio, the color's just along for the ride.

Care level: Easy · Temperament: Peaceful, shoaling · Max size: ~2" · Min tank: 15 gal · Diet: Omnivore, flake/pellet