Genetics will advance to the point where we can completely manipulate the genome of all creatures, including humans. It will start off innocently enough, correcting for certain hereditary diseases. Then it will move on to things like selecting eye and hair color. Eventually, "designer babies" will become a reality. Nearly all countries will pass laws prohibiting it, but it will still be done covertly by society's elite. The same technology will be applied to pets, including fish. Through the manipulation of genes, they will create fish that make today's flowerhorns look like speckled turds.

