Cosmic Blue GloFish Danio
The Asians created GloFish® by splicing the genes of zebra danios and hi-fin white skirt tetras and tiger barbs with phosphorescent corals and jellyfish. The fish were patented and licensed for sale in the USA several years ago once the FDA determined them to be safe for the environment. Though these fish do not actually glow in the dark, they are truly fluorescent and will keep that bright color throughout their lifespan.
Cosmic Blue GloFish Danios are hardy, and their color never fades.
Quick Facts
| Scientific Name | Danio rerio (genetically modified) |
|---|---|
| Origin | Farm-raised (genetically modified) |
| Care Level | Very easy, great for beginners |
FAQ
Do Cosmic Blue GloFish Danios actually glow in the dark?
No, they do not glow in the dark. They are fluorescent and display a bright, vibrant color under normal lighting conditions.
Are these fish safe for home aquariums?
Yes, the FDA has determined that GloFish® are safe for the environment and suitable for home aquariums.
Will the color of the fish fade over time?
No, the color of Cosmic Blue GloFish Danios remains bright and consistent throughout their lifespan.
Jacob Hardacre –
I bought these for my beginner aquarium and they’ve been thriving for three months. The blue color is vivid and stays bright even after a week of regular tank maintenance. Easy to care for and very attractive to watch.
Emily Vance –
The fish are active and colorful. I was worried about genetically modified fish, but they seem healthy and don’t affect the tank’s ecosystem. Great for adding visual interest.
Jonathan Short –
They look stunning in the tank. The color is consistent and the fish are peaceful. I only wish they were slightly more active, but overall very satisfying for a first-time fish owner.