It will be 3 weeks tomorrow since I got Rusty..I COULDNT wait any longer. I interduced the boys yesterday, again today, and I cleaned out Charlies cage really well and cleaned everything in it..and put them together...and GUESS WHAT>..they really seem to like eachother. They were both in the same hidey house together. ( I have one on each level) Rusty LOVES the big cage. I use to wonder what popcorning ment..I had an idea..but now I have seen it..that is what rusty was doing when I put him in the big cage. Charle seems to enjoy the company. Hopefully they will become good friends.