Hi guys, Please help. I have 2 pet rats, Finn and Coco. Finn has not been well for a few days and I took him to the vets yesterday. He may have an ear infection or it may well be a pituitary tumour. He now has medication but I'm not sure if he will pull through. Last night I separated them as I did not want Finn trying to climb around the cage as he kept falling down. I kept Finn outside of the cage so he could run around he floor and Coco all cozy inside. When I woke up this morning I found Coco had died in his hammock. I'm really worried that this may be because I separated them?! Perhaps he got stressed and had a heart attack? Now I am unsure what to do with Finn as I know rats are social animals and don't do well by themselves. Any advice would be much appreciated. Thanks.