Thank you cypher for the advice
I'd be lost at times without hamster central! That's good to know sticking to spot cleans is fine and not changing the cage set up. We have made sure every thing is on a flat level in his cage to make it safe and easy accessible for him. However long Ralph has with us we just want to give him the best care that we can. I never thought before that he needs to guide us with what he needs, it makes sense as only he knows!