Joanne
Well-Known Member
If you can leave them out for hours together where they snuggle up and sleep together, then it is probably fine to try them in the same cage. Have you been rotating cages? The biggest thing is the resident rat will try and claim the cage, so it needs to be cleaned really well and I would even go so far as to get some new hammocks and fleece so there is no scent on them. If they have both been living in the cage on a rotating basis, then it is easier because their scents are already mingled.