How to Improve Mandarin Coloration

[nevnat123]

Hi!
I have a mandarin goby in my aquarium that is currently being lit by a kessil a160. I have the whites all the way up but I've noticed that my mandarin still looks a little dull, mainly in the red portion. What supplemental lighting should I add to make the colors on my mandarin pop? He's currently feeding on pods, frozen brine shrimp, mysis, and blood worms. Is there anything else I could try feeding him to improve his coloration?

Thanks in advance!

 

[Miami Reef]

How long have you had the fish?

 

[nevnat123]

Almost two months as of now