Reply To: IDing rainbowfish (species and gender)
I currently have several hundred praecox and none show the combination of body profile and caudal fin colour that yours does. There are however several slightly different populations of praecox so perhaps your fish is from one I’m not familiar with. Certainly take the opinion of the specialist rainbowfish keepers over mine.
My experience of rainbowfish is limited to the common species so I’m afraid I have no idea what your other fish is.