Akari, didn’t mean to worry you. Just saying the smaller sized clumps are normal for my guys. If he was older I’d be worried about large urine clumps (possible sign of diabetes) but he’s a young guy so probably not an issue. We’re all going round and round with the smell and the size of the clumps, etc. I think you’ve got the right idea, call the vet in the morning and see what they say. Better safe than sorry. And I’d just toss the rest of that brown litter so you can see if there’s any blood in the urine. Or clean it and leave the empty box, see if he’ll pee in there and you can bring a sample to the vet.
