What's wrong with pearl birds dilute

Most of the pearl birds are mostly related to eating spoiled foods.Give it a fresh and clean feed, and pay attention to the place where the feed is stored. Do not put it in a dark and humid environment, which is easier to deteriorate.It is best to pour the food that I haven't eaten the day before, and then add new food to it.The purpose of this is to prevent food from the bottom from being eaten, which will produce deterioration.