Hi,
lately i've been thinking about giving this aspen or pine a try, i've always used paper, even back in the days but i'm willing to give anything a try. so, i'm guessing that when you spot clean urates it's very easy but how about when it's poop, do you spot clean or do you clean out the whole tub? i personally like the idea of a clean and disinfected tub. how much substrate do you put in the first place? 1/2", 1"? thank you for your advice.