Cosmic Blue GLO Zebra Danio (Danio rerio)

It's a fitting pairing, honestly: the GloFish fluorescent gene was first developed in Danio rerio itself, so this blue line is close to the species the whole technology was originally built around before it ever became a pet-trade product. Zebra danios also happen to be one of the most important model organisms in genetics research, so this fish is doing double duty as a nod to lab biology and a genuinely striking display animal. All the same speed and hardiness as a wild-type zebra danio.

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