Originally Posted by CoryFan
Actually, GloFish are genetically altered to display those colors via the injection of a gene from sea coral or jellyfish - depending on the color. The long-term goal is to develop a reaction that shows, via coloration, when their body of water is polluted.
That really isn't a goal anymore
they tried it out, it failed, and then they started selling them where they sadly became very popular. Now they have glo-tetras, and are even making glo-cichlids
I fully agree they are the ugliest.
And by the way - clownfish aren't ugly!