fish fin cell
fish fin cell culture-Glass catfish
They are transparent because, like all catfish they do not have scales and they also don't have body pigment. The glass catfish turns milky white when dead, suggesting it does something during its life to keep it transparent. When the light strikes the fish just right, it can make the fish an iridescent rainbow color. If you look at a live glass catfish with a magnifying glass you can see its heart beating.