By the way, scale rot tends to become a problem when a snake has both excessive moisture in the substrate & it's kept dirty (fecal contamination not cleaned regularly), also with no dryer, cleaner areas of their enclosure to "escape to". Remember many pathogens tend to like the same habitat that BPs do- ie. warm & humid. So it's important to provide the warmth & humidity for your BP, but keep it clean, AND not too "swampy". That's why the best substrates for this purpose are things like mulch or orchid bark- things that hold humidity well but have air spaces between the fibers or chunks- but those are also a challenge to see fecal material, so a little vigilance (& maybe a "good nose") will help tell you when to spot clean or do a total clean out.