I space-feed my indoors bun and my (temporarily) outdoors bun gets food twice a day. Plus unlimited hay and twigs. Each have about one 3-litre bag of fresh picked leaves and weeds every day + pellets.
Bam is not a big hay-eater, perhaps because I space-feed him. I’ve tried not to, but then he grows frustrated and chews carpet and tries to get to cables because hay is obviously not sth a royal prince will make do with. (Yes, he’s royalty. Just ask him.) I keep him happy with unlimited twigs though. He is free-range inside.
Yohio eats his hay in the night. He’s less spoilt than Bam but he’ll probably get there =/
Thibaud mum, mabe if you limit his food to only hay when he is in his x-pen he’ll eat hay then (like a bunny should and needs to) and then you can space-feed him leafy greens during the day + some pellets. If he’s a docile bunny you could weigh him in a bowl on a kitchen-scales to keep an eye on his weight. I do that with Bam every Monday.
I also want to thank you for the great links.