Allow your Ball Python to acclimate to its new home for a couple of weeks. Start your hatchling (about 15" in length) off with a single pre-killed one week to 10-day old "fuzzy" mouse. A smaller sized hatchling may require a smaller mouse; try a pre-killed 5-day old. Older ball pythons may be fed larger pre-killed mice or pinkie rats. If you have not had any experience force feeding a snake, you may not want to try it yourself until you have seen someone do it. Force feeding, whether of a mouse or with a formula inserted by catheter and syringe, is very stressful for the snake (and it isn't much fun for the owner!). If your new ball has gone several months without eating and is beginning to noticeably lose weight, take it to a reptile vet or contact your local herpetology society and ask to speak to someone who is knowledgeable about ball pythons and feeding problems.