Guianacura sp.

[Mazan]

Also I am not sure if yours are sphenozona as they appear to have the black first dorsal fin rays? According to the diagram sphenozona does not.

 

[fishguy1978]

Well it will be interesting to find out for sure, from the video everything suggested to me that the small one was the the female, not only the size difference but also the behaviour and colouration. With mine the female becomes darker like that when breeding, while the male doesn't change colour that much. But strange you would think that the previous owner should know...

He had them for several months and multiple spawns so I figured he knew what he was talking about. I also had not looked at them closely until I had them home.

Also I am not sure if yours are sphenozona as they appear to have the black first dorsal fin rays? According to the diagram sphenozona does not.

I wouldn't be surprised either. With so little informat out there.

 

[fishguy1978]

Mining operations have begun!!