Is this really a double red apisto cacatuoides? And help sexing?

[Tory]

This is my first apisto. he was sold to me as a cacatuoides double red male from an LFS, unsure of the age but he's about 2 inches long total and I've had him a week. I believe he is indeed a male because of the longer spikes at the front of his dorsal fin, but I'd like to know what others think.

I'm also wondering is he really a double red? He has that one spot on his tail but otherwise he seems to be starting to color up orange. Could he be an orange flash? Or is he just still getting his coloring? If he is a male double red, when should I expect to see more color? Currently he's alone in quarantine

[Colu]

Once it get a bit older it will colour up more it will be easier to identify type of apisto it is