Bunnies need and eat a lot of hay, a little bit of pelleted rabbit food, and a small amount of fresh vegetables every day. They need a high fiber diet, and they don’t eat grains (like oatmeal) or nuts. Feeding them isn’t as simple as opening a can of food into a bowl, as you would for a cat or dog. If you’re going to own a bunny, you have to be prepared to keep your cupboard well-stocked with these items and to shell out some money each week for fresh produce.
#1- Pellets. Most adult rabbits should receive 1/4 - 1/2 cup of alfalfa or timothy pellets a day, but bunnies under 6 months need pellets more often because they are growing.
#2- Hay. They need to have this available to them 24/7. Hay is extremely important, as bunnies need lots of fiber in their diet. (NO ALFALFA HAY!!!) Timothy hay is what I use, but orchard grass hay would work as well. This also helps the bunnies pass hair through their system, as they cannot cough up hairballs like cats can.
#3- Vegetables. Veggies should make up a small percentage of a bunny's diet (approx. 12%) They need roughly 1/2 cup every other day. That is, for bunnies over 6 months. Do not give veggies to bunnies under 6 months of age...that will give them diarrhea, and that can quickly become fatal. When giving veggies to bunnies 6+ months, there is a broad variety of vegetables you can give them! I will only list several common ones. Romain lettuce, Parsley, Basil, Carrot tops (carrots are high in calcium and should be given sparingly) Celery, Cilantro, Clover, and Collard greens, and more.
#4- Water! This is obvious, but They need fresh, cool water available at all times. I would not recommend reverse osmosis, because reverse osmosis has had all of the minerals taken out of it. Therefor, when it enters the body of a rabbit (and humans!) it extracts minerals from the body. But, really, do whatever works best for you.
CLICK HERE to see a page I have created on what supplies you need to give these food items with. Such as bowls, hay feeders, ect. I have listed there on what works best for us, and what we recommend