Hello, I am new to this forum & have searched all over the internet, but can't seem to find the right answer. I bought a bunny yesterday. It's a four-week-old male and I'm not too sure on the breed. He hops & seems to have a ton of energy, but hasn't eaten any pellets or pooped all day, though he has drank water. Am I supposed to be feeding him Kitty Milk Replacer or solid food? And why isn't he pooping? Any information would be greatly appreciated. THANK YOU!