I have a female rabbit who has now had a sludge problem 3 times. She has been put on a drip etc which seems to work for a couple of months but i was wondering if anybody else has any other advice to help me to prevent it. She doesn't drink much water so i syringe some in to her every day. She always has fresh food during the day and night i.e spring greens, romanine, carrots ,broccilli and also timothy hay. She is cleaned out daily. I have tried flavouring her water. Has anyone had the same problem with there rabbit and have you found anything that helps.