There's no roof?! LOL well you can easily add one!, there's no roof on the cage. I wonder if they jump out of it??? lol I'm seriously thinking of replying tomorrow morning. What is a "Mosaic" Chinchilla? Is that like a Pied bird? hahah!
I'll have to sleep on this.
Yes, mosaic is just a hybrid. There are so many different variations in chinchilla land.
I think you should go meet them! if they are indeed sweet and can be handled....might be fun!!