I have 3 juvenile carpintis and 2 of them have a black spot on there dorsal fin. The 2 that have the spots never chase each other and always hang out together. The one that doesnt have a black spot gets chased away by 1 of the carpintis with the black spot and its always the same 1 envolved in the chase. From what I have read the black spot indicates a female, is it possible for a male to have the black spot also?
Carpintis black spot on dorsal fin
- Thread starter guru101
- Start date
It is possible but very uncommon which is why most people feel confident in using this method to sex them. Both my females have the black spot. I'm sure someone can dig up a pic of a male with the spot though.
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If they are truly juvies then they aren't sexually mature yet. It could just be coincidence. Maybe someone who has breed them before can shed some light on the subject.
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I had 5 carpintis a few months ago.in the pair that formed, F had black in the dorsal.the M would also show some black visible at times, then it would fade
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In nature it is not uncommon to see shoals of females, and subordinate males hanging out together. In cenote Azul large shoals of female uropthalmus are everywhere, but dominant males are solitary, dashing in and out of holes and caves.
In my experience female carpintus have dark in the dorsal, albeit sometimes obscure. When spawning this seems even more blurred as they both take on similar coloration.
At a young age the males profile (at least in the dominant one) is sort of obvious.
female
male
In my experience female carpintus have dark in the dorsal, albeit sometimes obscure. When spawning this seems even more blurred as they both take on similar coloration.
At a young age the males profile (at least in the dominant one) is sort of obvious.
female
male
With my pair the female has the black dot but it fades in and out, very prominent when she's ready to breed disappears when she's not.
