I've been feeding my crew Oxbow for just over a month now and I'm very concerned about the dramatic weight loss that has happened to all of my rats. I give them a big bowl of it in the morning but they still seem very thin. Their coats also seem rougher too. I really don't know what to think of this because I have heard so many great things about Oxbow. I used to have my crew on Harlan Tek and they were a bit on the chubby side. I was told that my rats wouyld loose some weight but I don't know what to think of whats going on because it seems very unhealthy to me and I'm quite worried.