This is for all you charcoal users. Does anyone know if there is a downside to using horticultural charcoal in large quantities in a Nepenthes mix, say 50% or more? I Have more charcoal than aged bark at the moment and have some stuff I need to pot, but did not want a ton of perlite as the extra filler.
I also have lava pebbles(up to 2.5 cm diameter), hydroton(smaller than lava), and of course lots of perlite, peat and sphagnum. It's not like I don't have suitable things to make a mix, but I was just curious of any downsides to charcoal, or using it as a bark sub.