Sexing cardinals

HouseofStark

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Wondering if anyone would be able to tell me if this is a mated pair of cardinals? I’ve had this pair for 2-3 years. Wondering if they are male and a female or 2 females? I figured if they were both males they’d fight. And from what I read females had a shorter 2nd fin, and these seem to look identical.

 
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HouseofStark

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Im starting to lean toward them both being female....never seen any breeding, eggs or little ones. :(
 

Jay Hemdal

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Wondering if anyone would be able to tell me if this is a mated pair of cardinals? I’ve had this pair for 2-3 years. Wondering if they are male and a female or 2 females? I figured if they were both males they’d fight. And from what I read females had a shorter 2nd fin, and these seem to look identical.



I’ve never bred these, but they are slightly sexually dimorphic. The males have a more bulldog like jaw. However, this is relative thing and is most easily seen if you have a known male and female to compare side by side. I’m terrible at seeing that sort of relative difference(grin).

Here is a picture of a male holding eggs:

Be aware though, that their larva are NOT precocious like bangaii cardinals. They would need planktonic food in a larval tearing tank like clownfish need.
 

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