Come to think of it, when I had her I think I used an old butter knife but it's still a pain. Man, if someone made a urate liquefier I would be a customer for life. Poo doesn't even bother me but a stuck urate is the worst.Chip it away and use a quarter roll of paper towel to clean up the mess
Humm maybe white cages aren't so great after all. In a perfect world I would coat the bottom of AP cages in epoxy resin to prevent staining and round out the corners to prevent stuck urates....if only I had the time lol.