for a chihuahua 10 weeks old about 2 tsb. of this http://www.petsmart.com/product/index.jsp?productId=3406347


and then how much of this should i mix in http://www.petsmart.com/product/index.jsp?productId=2750087


if the dry isnt good cause i know it has by products in it i want the best puppy food for him not too expensive