I brought my bunny inside for the first time a week ago and he’s been living in my room since then. The first 5 days, he was using his litter box perfectly. Then two days ago, he decided he’d only use it half the time. He’s set up with an x pen in the corner of my room. No cage. I think he’s learned the whole pen is his territory so he can go wherever he wants to. I’ve heard that I should just decrease his space so he feels more inclined to keep most of his space clean and poop free. But right now, he’s only peeing directly outside of his litter box. Always right next to it, although the poop’s a bit more spread out. I doubt decreasing his space would work, and he’d probably start rattling his cage at night if he had less room. So what’s the solution? I thoroughly cleaned his cage and litter box today, but he’s still only using the box about half the time. Does he maybe just need a bigger litter box?