Thanks for posting everyone. It does seem that when they start chewing at certain spots inside a cage it can be difficult to take their minds off it. Thankfully, last night was quieter. By swinging his Trixie ladder out from one side and placing a tube and a ceramic food dish up against the other, these measures seem to have helped. Because the holes are positioned at the top where clips would go in to hold the lid of the cage on, much like the holes/gaps on savic rody/ferplast duna tanks) so it`s not a case of placing a washer, screw and bold on! I`ve done that with the water bottle hole though on the Gabber and that works a treat. Just wish the clip holes could be so easily blocked!
Looks promising though. x