Hello,
You really need to give the bun outdoor space too.
He should have a hutch at least 6ft x 2ft space, with a run attached at approx. 6ft x 6ft.
Your bun really needs exercise and a run will provide this.
If you have foxes in your area, youll need to make sure your equipment is foxproof, as dont want bunny getting taken :shock:
Good luck
K x