help with diagnose panduro sex?

[zhihuai1982]

I bought a pair of panduro form lfs。 now i am not very sure that they are a couple, and i also cannot distinguish panduro form nijsseni

fish 1 i think it's female panduro

fish 2 i think it's male pander

 

[zhihuai1982]

photos of the same fish when they just arrived my home

fish 1

fish 2

 

[Mike Wise]

Looks like a pair to me. How large are they?

 

[zhihuai1982]

hi, mike

according to the picture below, i think the fish 1 is female nijsseni, and i am not sure that the fish 2 is nijsseni or panduro?

 

[zhihuai1982]

Looks like a pair to me. How large are they?

the fish 1 is about 3cm
the fish 2 is about 4cm

 

[Mike Wise]

... i think the fish 1 is female nijsseni, and i am not sure that the fish 2 is nijsseni or panduro?

Yes, I think you're probably right. They look more like A. nijsseni or even A. sp. Oregon. To be honest I wasn't really trying to ID the species, just trying to sex them. They're still small, but seem to be showing sexual differences. Once the male gets to 2"/5cm the dorsal fin shape should be useful for species ID.

 

[zhihuai1982]

Yes, I think you're probably right. They look more like A. nijsseni or even A. sp. Oregon. To be honest I wasn't really trying to ID the species, just trying to sex them. They're still small, but seem to be showing sexual differences. Once the male gets to 2"/5cm the dorsal fin shape should be useful for species ID.

hi mike

i have updated photos of my fish, you can see their dorsal fin more clearly, so can you help me to diagnose if they are nijsseni or panduro?

 

[Mike Wise]

Zhihuai correctly identified the species - A. nijsseni.