Hi
I have 3 of these little guys. I bought a female off TM earlier this year and got 2 others from lfs which both turned out to be males. The female is exactly the same with the yellow fins and the male she has chosen to pair with is maturing more everyday. He is developing his hump and a royal blue colour on his gills.
The eyes is what does it - you just want to reach out and grab their cheeks and go "goochy gooo!" :gigl:
The extra male is now out of sorts so I think I'll need to find another female, or replace him with a female.
-K.