You won't need to feed 4 times a week, that is too much. You may start offering 2 pinks every 5 days and see how that goes. Fuzzys are the next size up and like pinks they vary in size. When you decide to try fuzzys you can ask your supplier to pick out the smallest ones to start off with. If you order in bulk you can go thru and pick out the size you want and work up from there. Sometimes people are afraid that the food item is too large but you would be suprised what they can eat
If your snake eats 2 pinks with no problems then fuzzys are next.
Alicia