Fleece and potty training help?

My first chin is litter trained but my other isn't getting it so well... It's getting to the point where I am putting him in the other cage(hopefully the introduction process goes well), which is covered in fleece.



How often would you change the fleece with one chin peeing on it? I think I can get him to go in the litter box a bit but he will still probably pee elsewhere.



Any other potty training tips?



He's in the quarantine cage so there's no fleece in there, but he is peeing in one corner(mostly). I'm going to start the cage within a cage method today as well. :)