well, i only recently bought it, from a nurseryman whom I have known and trusted for years, and has supplied many of my plants. When I picked it up at the nursery to have a closer look, it keeled over! had not much of a root system at all, but they were fresh young roots, and I couldn't see any sign of disease on them. I assumed it was a cutting, as is often the case from this particular nursery. The guy propped it up with 3 bamboo stakes for me, and I bought it anyway. (he also gave me a cutting from a stapelia gigantica for free!) At that point it had a piece about 1cm on a tip (or two) that looked blackish, then dried to yellowish/brownish. I have not re potted it yet, as I have not really had time, but watching it get worse, i feel really bad, and need to do something. I have not watered it too much, as with my other succulents, and it is under my veranda, in a fish tank that has the front side missing (I thought it would give a few things some extra protection) it gets afternoon sun, but not directly, like, I don't think its sun burn, I have worried about the cold though.