Mandarin question

[USMA36]

I recently added a mandarin from Divers Den. He’s definitely not as colorful as most of the others I have seen, almost bland. Is he a he or a she? Seems far and happy. Picking at pods all day. Tank is 90 gallons and almost 2 years old, I have added pods a few times since the tank started. Just added 10,000 to be safe right before I got him. If he is a she can I add a male? Or should they have been added together? I also am planning to start culturing my own tigger or Tisbe Pods hopefully beginning next week.

 

[ndrwater]

Nice fish!! Long dorsal spike spike indicates a male.
Not super easy to tell from the photo though.