I have two rats Moo and Oink. The two are best buddies and do everything together. Moo has a digestion issue (nothing contagious) and needs a special diet for three weeks and the vet recommended to keep the two separate to keep a better eye on Moo's progress (how much he poops). I hate to separate them and am worried they will get depressed from being lonely. And I'm afraid Moo will only get worse instead of better if he is isolated. They can be together during free range time, but I usually only have them out for about 2 hours a day. I feel horrible keeping them apart the rest of the time though. What would you do?