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Discussion Starter · #1 ·
Have a group of 11 Saulosi that I am trying to get a feel for the male:female ratio.
As of now I have one dominant, fully colored up male, one sub-male that is partially colored up and two females that I have confirmed from them holding eggs. The rest are quite a bit smaller which has been the case since purchase, so I’m uncertain of their sex.

watching the dominant male, it seems pretty clear what is courting behavior (flashing/shaking followed by a tail wag swim back to his cave) vs aggressive behavior (flaring fins and throat and chasing the sub male into corners).

Based on this behavior, if I see the male “courting” one of the smaller unsexed fish, is that a pretty good indication they are female? Or does the male simply see all yellow coloring and assume it’s a female?
 

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Discussion Starter · #5 ·
Yes, I understand what you're asking, and the answer is it is unlikely that a dominant male would 'court' another male. The dominant male knows which fishes are female, even early on, and he will pick out the most likely partner(s) to display his courting behaviour. If she is not receptive, he may become aggressive, so that's not a foolproof indicator of gender, but courting behaviour towards a particular fish is a pretty reliable indicator that that fish is a female.
interesting, thanks for the reply!
 
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