Palito,
If you haven't already re-potted it, you could go for the lava rock/hydroton (we call it hydroleca in the U.K., small clay balls, are we talking about the same thing?). All the data suggests they don't like to have their roots kept wet and stress is always put on good drainage (hence mounting them) and they are known to dislike disturbance. I wouldn't use moss as this can stay wet/moist for some time, coconut chunks not bad but can also stay too moist and of course eventually breaks down so you have to re-pot and disturb the plant. Clay/lava/hydroton is inert so in theory should not break down and not need changing (can some-one now invent orchids that water themselves?) If mine hadn't arrived in coarse bark, I would have put them in clay in a slatted basket because I've noticed even with Hydroleca, it can be quite dry at the top but quite damp at the bottom of the pot, in this way there should be a more even drying out and its very easy to give them more water when they look dry, its very hard to take it out !
Pals
|