Clownfish not eating

[DougiesREEF]

Hi everyone. Recently I cycled my first tank and once ammonia and nitrite hit 0 I added two clown fish. The one took a day and then started eating like a pig. The second however still will not really eat and it been about a week. Attached is a video of the clown. Are there any recommendations to help him eat. I’ve tried flakes, pellets, brine shrimp frozen, and blood worms.

 

[Jekyl]

Still photos under white light may help. Are either breathing heavy?

 

[DougiesREEF]

The one that is not eating is breathing heavily