I have Tetra. for my chickens. My dog has an ear infection, in the ear things don't seem to be working thought I would try some tetra. she is a 50lb. lab mix any one know how much and can I sprinkle in food? We have 2 dogs and a cat. cat is outside most of the time, other dog is bigger so if I put 1T. in drinking water (per gallon) that would also prob. work but don't know how much each dog would get. Have to go to work now be back about 6pm