From what i've heard that is impossible, glo-fish are all infertile to prevent an ecological disaster incase of any accidental escapees. I've seen 3 shows on how they are made an all say the same thing they cant breed. Regular zebra danios (aka non-dyed glo fish) can breed though.
Get your facts straight, imagine how much cash it would take to add a jellyfish gene to every baby zebra danio embryo. They breed, eat, and act like regular zebras just brightly colored.GLO-FISH are fertile. Also, they are not dyed, don't say things if you don't know what you're talking about, dude