Reply To: just wondering

#11863
Elly
Participant

Actually, I was just reading about them from the company. They were originally produced to (and they are still trying to get it right) to turn fluorescent when the water they live in is polluted so that scientists can monitor pollution. The fluorescent fish nowadays are not injected with genes, but bred just like any other zebra danio. The injected fish were injected with the fluorescent gene from anemones or jellyfish within minutes of fertilization while still in egg form. I’m pretty sure they didn’t get hurt since they wern’t even formed yet. The injected gene then becomes a part of their DNA that they pass off to their offspring. And Voila! fluorescent fish! I personally like them and I would like to see other fluorescent fish. You have to admit a glowing betta would be pretty sool!