FROM THE MR JOHNSONS RANGE. 2X MR JOHNSONS ADVANCED FERRET FOOD COMPLETE DIET FOOD W/VERM X 2KG SMALL ANIMAL. GUINEA PIG SIZE. SMALL ANIMAL. We are always adding new products to our range of over 4,000 products, providing pet supplies suitable for Aquatic, Reptile, Small Animal, Bird, Cat & Dog enthusiasts.