I can't believe I have never seen such fish before and wanted to by them right away but hesitated, because I'm not good at taking care of fish. They usually die on me after taking the best care of them and it makes me feel bad . After picking up fish food and a fish tank, I changed my mind because I didn't want such beautiful fish to die.
I read that they are genetically modified and only sold here in the United States excluding California. Anyway you can read the article on these beauties, I still want some and they are not expensive at your local Walmart, they cost between $5.00-$6.00 depending on the sizes.
http://en.wikipedia.org/wiki/GloFish