Asking for Gender ID

[Milingu]

With the grammodes the head shape and facial striations work good in older fish but can be difficult to read in younger fish. Especially when you raise a single specimen.
But you can easily sex them by the red pattern on their bellies. Red spots = male, red honeycomb pattern = female. This works already with a few months old fish at 1.5 - 2" length because the pattern doesn't change much over time.

I was told this also works with D. calobrensis.

Female

Male

 

[duanes]

Also note on Milingu's pair, the spots on the cheek and jaw of the male, as opposed to the more linear striations of the female.
Mine were similar.

https://hosting.photobucket.com/albums/i97/dstuer/grammodes/.highres/040.jpg?width=1920&height=1080&fit=bounds

male above.
I encourage anyone that has photos that show obvious gender differences of fish not yet here, or already shown, to post in the thread.
Below Cryptoheros cutteri

https://hosting.photobucket.com/albums/i97/dstuer/cutteri/.highres/1stlabrids0062.jpg?width=450&height=278&crop=fill

Above male, below female both in spawning dress, note the obvious cranial profile different shape

https://hosting.photobucket.com/albums/i97/dstuer/cutteri/.highres/tamooff0022.jpg?width=450&height=278&crop=fill

 

[Gourami Swami]

This is great stuff duanes , I just made it a sticky, I assumed you would agree it should be, since you started the thread !

 

[duanes]

https://hosting.photobucket.com/albums/i97/dstuer/Ceibal/.highres/IMG_9283_zpsbd9ba925.jpg?width=1920&height=1080&fit=bounds

Above female Australoheros sp "red cabal", below male, in normal coloration

https://hosting.photobucket.com/albums/i97/dstuer/Ceibal/.highres/c36f1752-523f-41aa-bb7a-d9436f519dc0_zpsedcd1478.jpg?width=1920&height=1080&fit=bounds

But below spawning dress is quite dramatic, and size is the determining factor

https://hosting.photobucket.com/albums/i97/dstuer/Ceibal/.highres/ceibsp2001.jpg?width=1920&height=1080&fit=bounds

 

[duanes]

This is great stuff duanes , I just made it a sticky, I assumed you would agree it should be, since you started the thread !

Thanks
I bow to your opinion

 

[duanes]

https://hosting.photobucket.com/albums/i97/dstuer/labridens/second%20round/.highres/IMG_7029_zpsw7vavokf.jpg?width=1920&height=1080&fit=bounds

Above female Nosferatu of the "labridens" clade, perhaps N pame
Below male

https://hosting.photobucket.com/albums/i97/dstuer/labridens/second%20round/.highres/IMG_3055_zpsdf93bcf7.jpg?width=1920&height=1080&fit=bounds

Below pre-spawning activity

https://hosting.photobucket.com/albums/i97/dstuer/labridens/second%20round/.highres/062_zps954d27d8.jpg?width=450&height=278&crop=fill

 

[duanes]

https://hosting.photobucket.com/albums/i97/dstuer/nanoluteus/.highres/053_zps2cb500d0.jpg?width=1920&height=1080&fit=bounds

Above male Amatitlania nanoluteus
Below female, in this case note the extra color in the dorsal of the female, similar to others in the genus like, myrnae, and sajica

https://hosting.photobucket.com/albums/i97/dstuer/nanoluteus/female%20nano/.highres/015_zps70671d6c.jpg?width=450&height=278&crop=fill

 

[duanes]

Below another Madagascan that may be of interest to new world keepers, Ptychochromis sp "Tarantsy".

https://hosting.photobucket.com/albums/i97/dstuer/Ptycho/tarantsy/.highres/IMG_7006_zps5fd9tk1n.jpg?width=450&height=278&crop=fill

Above male in normal color.
Below both in spawning color, male to the left, note the females thick breeding tube (right)

https://hosting.photobucket.com/albums/i97/dstuer/Ptycho/tarantsy/.highres/IMG_1902_zpszq3b0sm8.jpg?width=450&height=278&crop=fill

 

[duanes]

The genus Andinoacara are notoriously difficult to tell apart when not spawning

The female A coerleopunctatus (above) has a slightly boxier body, and her colors slightly darker (at times)
Male below, longer fin extensions, slightly more streamlined body, lighter overall base color

Below Pair in fry rearing colors, male left

female in spawning dress

 

[FINWIN]

Add Honduran Redpoints please.