The ONE clone of madagascariensis is lowland. I don't know why the info that it is highland keeps gong around, because it isn't. Give it typical lowland conditions, good air circulation, and let it get bone dry between waterings = recipe for success. It also likes a more "highlanderish" mix (i.e. more airy) than other lowlanders. Ilbasso has a decent choice of medium, though sphagnum isn't the best choice for the species, and no one has ever discovered a "perfect" mix for the species as of yet. Though it grows in Sphagnum magellanicum in situ, the repeated wetting and drying of Sphagnum at least in "captivity" causes it to break down too quickly. MrAga, I must question your use of quartz...surely it will leach SiO2 into the media?