Sex my Umbee please

duanes

MFK Moderators
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Jun 7, 2007
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Isla Taboga Panama via Milwaukee
Looks male to me, nice looking fish
I agree
The heavy spotting and other markings on the gill plate and unpaired fins are male traits, females are "almost always" devoid of those on the gill plate, and the unpaired fins are also less intense.
Another more superficial male trait, are the long fin trailers
 

gturmindright

Gambusia
MFK Member
Apr 28, 2016
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Well these pictures aren’t as good but here is the progress and potentially the proof? that its almost impossible to tell. This is 8 months later. I don’t feel a big change. Think it could be a girl.
On another note: is there no lab test that we can use to sex fish?

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Hybridfish7

Bronze Tier VIP
MFK Member
Dec 4, 2017
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Well these pictures aren’t as good but here is the progress and potentially the proof? that its almost impossible to tell. This is 8 months later. I don’t feel a big change. Think it could be a girl.
On another note: is there no lab test that we can use to sex fish?

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Looks the same as before. Still a male. Females don't have that many freckles. Female would also have a black patch on the hard rays of the dorsal fin. Female also wouldn't have streamers that long. Your fish is well past the size where it's up for debate.
 

Done45

Jack Dempsey
MFK Member
Jul 15, 2014
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United States
I’d say male but just re watched the mad aquarist YouTube video on COTA umbees. Looks like a female like he has with that big rio mag umbee at the beginning. Nice fish either way
 

Cichlidfever

Piranha
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Aug 15, 2005
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Bowie, MD.
Congratulations it is a male :)
 

gturmindright

Gambusia
MFK Member
Apr 28, 2016
6
4
18
25
Here he is today. 9.5”. F0 maybe stunted by hard water? I have Detroit city water. 200ppm ish. He’s in a 6’ tank. 250gal system.

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