I have had this fish since February and its been a hard trying to sex it. I am starting to think it may be male because its beginning to grow a nuchal hump.
Yeah it is a short body texas, I forgot to put that. kinda obvious though right
I know that females have an apparently easy way to tell them from a black mark in their dorsal fin, but Honestly I thought I should just ask for some outside opinions
No he was light when I got him, then he was VERY dark for a long time. his fins have a nice reddish tinge though. Yesterday he looked particularly blue so I took some pictures, here is the same fish 2 days before and he looks like this today too and most of the time.
I always wondered why the fish is mostly black most of the time, I even had a thread on here but nobody could really give me an answer. its not breeding dress because the fish is still only about 2.5-3 inches. A lot of poeple think it is a FH and I have to correct them that its a short body texas.
The dark color in the dorsal suggests female to me.
Although with these man made morphs it is difficult to really have any certainty, because normal color patterns often don't apply.
female carpintus
male
Duanes the female in your picture is in breeding dress though, and the male isn't. Male breeding dress looks the same.
I believe the females have a darker dorsal fin but I'm sure a male thats showing juvenile bar coloring or a red texas would probably have a dark dorsal too. as far as I know the fark spot in the dorsal only works for sure on adult fish.
Thats awesome, thanks for the decisive action guys. Any explanation for the nuchal hump forming though ?
I also have a smaller one thats less colorful and gets dominated by that one, so I just assumed they were 2 males or a male and female. The fish in the picture runs the entire tank