Ball Python first feed

Give him a couple days off. I'd say Monday would be a good day. If he doesn't eat it try again the next week. Don't leave the hopper in there with him overnight. Just put the hopper in the tank and step away and be quiet.
If he doesn't eat it you can either try and take the hopper back or keep it alive with a wet down mazuri (lab blocks) or dog food.


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Ok, I'll try get my hands on a live hopper on monday. Thanks for the advice!

He ate both pinky mice! Left them in his tank, and came home after a night out to find them gone! So should I still go buy him a hopper mouse on monday or give him another week and feed him a hopper mouse or buy him like 5 pinkies and feed him those?

Don't even bother with mice. Get your snake started on rats now! At 70 grams your snake can easily take a fuzzy rat, which it is 100% safe to leave a live fuzzy rat in with your snake overnight. It cannot harm your snake. Mouse pinks are a waste of time and way too small for a ball python. Follow a 5-7 day feeding schedule, as has been suggested. Listen to the folks here. Most of us have been keeping and breeding balls for many years. Never trust the advice from a pet store. 99.9% of them have only read a care sheet (which is usually inaccurate!) and make minimum wage, which is hardly enough to motivate them to learn about a species. They are only trained upsell, end of story. Since you asked about picking up another feeder on Monday, that would work being that it had a very small meal today or you could wait til later in the week or so. A skipped/small meal here and there isn't going to harm him.