Sexing Firemouth

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Com3backKid

Black Skirt Tetra
MFK Member
Apr 28, 2017
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Can anyone tell me if these guys are male or female. I think they’re both females, but I’m not quite sure.

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You won't reliably sex fire mouths until they are fully matured. Even then it can be difficult unless the pair are side by side.
People say males are better colours with longer fins but this can be unreliable.
Males tend to be bigger and a little more impressive looking but only once maturity is reached.
Other than venting the fish,it's just guesswork for now.
 
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I'm almost 100% sure your Meeki is a female...

Yours looks about 3" long and from 2.5" sexual differences start to become apparent. USUALLY males get longer fin extensions and have a longer snout with bigger mouth and squarer more muscular looking body. Females tend to be smaller and stouter in the abdominal area with shorter face.
 
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Well there’s 2 different firemouths in there, which one were you referring to?
 
Both look female but the second pic the FM isn't completely in shot
 
Tried getting a picture of the first pictures vent tube. The one from the second shot is very shy, so it’s hard to get pictures.

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