Hi, does anyone know what these brown tiny spots are on this succulent (Gasteraloe) ? It looks like the white bumps turned brown or something. Could it be from sun burn? Or maybe overwatering? It sits by a west facing window so receives part sun/shade. I don’t really like the soil it’s in, I think it may need a better draining soil, but I’ve been traveling for work so I don’t have any of my plant supplies with me :/ it looks like it’s mainly on the outside leaves; all the new growth in the center still looks healthy, and all white bumps.