Bangaii cardinal issue.

[Nowell]

I have a gorgeous Bangaii Cardinal male. He's huge. He's dominant. He did not like the most female looking Bangaii I could find added to the tank. That one died. I suspect the LRS tank was full of males and the owner and I picked the most beta male out of the group. The fish was corralled to the corner and starved within two weeks.

What if I add a BUNCH of new Bangaiis (err Bangai plural?) at once. Surely Mr. Testosterone couldn't abuse them all. Eventually he'd pair off and I could transfer the rest somewhere else. They are ridiculously easy to catch....

 

[Palyzoa]

Found this article about identifying Male and Female to form pairs. Hope this helps!
https://www.advancedaquarist.com/blog/how-to-determine-the-sex-of-banggai-cardinalfish

 

[Captain Quint]

Found this article about identifying Male and Female to form pairs. Hope this helps!
https://www.advancedaquarist.com/blog/how-to-determine-the-sex-of-banggai-cardinalfish

Indeed how they are sexed. Glad you posted it is true sexing.

A mature male will have a slightly squared jaw comparison as well, albeit difficult to tell at times.

 

[pdisner]

It’s extremely difficult near to impossible even to the trained eye to sex. But I have noticed myself very small differences. The female will have a slightly longer body shape. When she’s Travis the lower abdomen seems to darken as it enlarges.