I just got 2 turquoise rainbows almost 2 weeks ago not knowing what sex they, well after watching them I believe I have a male and female! The male is constantly chasing and staying beside the female and and the top of his head is flashing a super bright yellow!!! It also seems to me that he is trying to direct her to a group of plants in the corner of the tank..He is twitching and circling her but she seems to be ignoring his actions! Is she not ready or what??? This is really neat to watch.