Dander is doggy Dandruff, dry flaky skin, he needs more omega 3 in his diet, also instead of just giving his 1 sardine a week, give him 1 sardine a day, Oatmeal shampoo for dogs is best for dandruff, ur local pet store would sell it, when u shower him once a week shampoo & conditioner with the oatmeal shampoo & conditioner that way ur moisturizing his skin. The shampoo + condictioner ur using is probably drying out his skin..also brush him once a day this promotes oil production. he needs a good diet with vitamins & minerals including fatty acids which will help moisturize the skin & stop the flaking…
