Harmful, mainly in the rabbit stomach, it may not be digested well, or it may be toxic. The reason for eating is simple. First, I don't eat enough or eat the wrong food. Second, I want to go out. Rabbits can't always be kept in boxes. I don't know why you did this to them. A little cruel. Let's play regularly every day. That's all right, but you'll make a mess of things. Be careful. Rabbits eat alfalfa+ladder grass+rabbit food when they are too young. After three months, they will change the rabbit food into rabbit food eaten by adult rabbits. No matter how much water the big rabbit and the small rabbit give every day, they can drink it in a special drinking tank. Remember: you can't bathe rabbits. Never. Also, prevent coccidiosis in rabbits, otherwise 90% will die. . . Post a photo of my rabbit drinking water.