Every dog reacts differently to food, so what works for some isn't the best for others. There is a general concensus though on what foods you should look for and what to avoid. Yes, fish oil is a great additive to help out the coat. But Basenjis DO shed. Not nearly as much as other dogs, but they do shed. Could yours be blowing it's winter coat finally? Also they get flaky when they are more stressed/nervous. Has anything changed in/around your home lately?