Oh no. So sorry for your loss. Know that you did everything you could and gave him the love and care he deserved. Sounds like there were other possible things going on. Hugs. And cherish the time you had with him.
I would say it's possible it's ear mites and not just ear wax. And you don't want to clean the crust out if it's mites. They need to be treated.
Can use ivermectin pour on , 2 to 3 drops in each ear , and in between ears. Repeat day 10.
I've successfully used ivermectin pour on available at tractor supply or similar. Few drops in each ear. And then in between ears. Repeat after 10 days.
Do not try to remove the crust etc. It will come out on its own.
We've ordered the sample box from small pet select. Here in US.
Hay is hit or miss with us.
One day he likes it then next day he doesn't like that type or brand. Sometimes we go months where he's satisfied.
Lately he's been loving the...
We use the wood pellets as well. Started with a layer
After trial and error he hates to stand on the pellets. He only pees on the ends and poops on one end. So the several months I've only been putting a thin layer on each end. Leaving the middle clear. Top with hay. Has been working very well.