I have a 9 week old mini lion lop who was the runt of the litter so was already small. I have only had him a week but he does not eat or drink as much as I expected. He eats the food I was given from the breeder (rabbit royale) but he avoids the pellets I have mixed in and won’t eat any hay, Timothy or alfalfa. He drinks water but mainly if I pour some on the floor. He is also very skinny and is underweight for his age. Is there a way to encourage him to eat or should I take him to the vets?