Sexing Cryptoheros Panamensis

[duanes]

Usually the females are much smaller, it's lucky to have a similar sized one.
When mine spawned they were very young, the female was only @ 2", male 4".
The fry are very much smaller than their cousins cutteri, mine seemed too small for artemia naupli.

 

[tiger15]

I just captured a video of the two fighting. The one on the left is the presumed male, and the one on the right is the presumed female. These two little fellows have been going at each other whenever they come close. They hate each other and don't behave like a pair.

http://www.youtube.com/watch?v=MHUsrVds6R4

[video=youtube;MHUsrVds6R4]http://www.youtube.com/watch?feature=player_embedded&v=MHUsrVds6R4[/video]

 

[duanes]

Looks to me like pre-spawning jousting. The one on the right has a definite female coloration, much like mine did, and the darkening colors are similar to mine when they spawned.