We all know how difficult it is to identify the sex of these fish, so please post a picture in here and we'll try to help you (or at least give an educated guess!).
I done some moving around today soI pulled these 4 to check them out. What do you guys think? all fish are oer 2.5". I know fish 3 looks stressed. He gets like that every time its removed but darkens up as soon as I put it back in the tank.
I say:
1. male
2. female (no otonodes or hairy fins)
3. male
4. male
Fish 1