By the way these are fresh water, they havent done it yet with salt water fish to my knowledge although clowns I think would be the first step in that direction if they did since they are already aquacultured on a large scale as it is. They original ones were discovered by mistake while they were researching ways to make a fish heart glow(according to that article the fish's heart is similar to our own) in order to better understand how it works. The original scientist declared it a failure and moved on, meanwhile his collegues saw $$$ signs and moved to marketing. Although this article did not state it, the original strain was made to be completely sterile(well 98%) so as to not be able to breed in wild populations if released. Last I heard Petsmart was refusing to carry them, and ***** was being silent about it although that may have changed. My LFS has already said they will not carry them either, but we shall see too.