What dietary components are vital for the red-eyed tree frog to maintain its defining red eye coloration?

Answer

Carotenoids

Research indicates that the intake of carotenoids is vital for the wild population to maintain the red eye coloration and skin pigmentation; captive populations often show degradation without it.

What dietary components are vital for the red-eyed tree frog to maintain its defining red eye coloration?
taxonomyanimalclassificationfrogTree Frog