Thanks 🙂
I am quite sure it is a female. She only gets this colour when courting. and it is less intense in reality. The flash makes everything shiny 😛 .She also gets the gender-typical pale colouration. Her fins are somewhat shorter than and different from the “real male’s”. Also, I saw them performing “fake spawning”, so to say.
I got them from Thorsten Kolb at the IGL. He breeds a lot of paro’s, he should know how to sex them.