Glowfish -

They come in a "cosmic" range of colors: Starfire Red, Electric Green, Sunburst Orange, Cosmic Blue, Galactic Purple, and Moonrise Pink. 3. Environmental & Scientific Origins

They are tropical, requiring water temperatures between 72 and 82 degrees Fahrenheit. Glowfish

Most GloFish species (like Tetras and Danios) are hardy and maintain the same, often peaceful, behavioral traits as their non-fluorescent counterparts. They come in a "cosmic" range of colors:

Originally, these fish were developed by researchers in Singapore (later patented in Texas) to detect toxins in water, with the intent that they would glow differently in polluted water. Glowfish