Yup. I mean it doesnt smell like death warmed over or anything. But it smells like piss lol. Caesar always had an odor to his cage as he pisses all the time. I found putting live potted Pothos in the all my snake cages has eliminated any odors and the snakes seem to like the plants. Some more than others haha. Also Caesar doesnt really push anymore since adding the plant. He still paces the front and windshield wipes the doors but at least he quit pushing. Maybe its the elimination of the musty piss smell? Who knows but it works.
I doubt its the rats that make the piss smell. As snakes get bigger, they will piss more which just smells more. When Caesar actually decides to drop a 'real' piss, its like a tsunami.