Has anyone used inorganic potting medium for orchids. I've noticed more youtubers using clay pebbles and seramis. I was wonder if anyone has tried it, and what their experience was. I bought old potting medium from a small local store and it poisoned most of my phaleonopsis orchids. The roots turned black/brown then died. The went from the pic too half that root system. Basically what I'm saying is they're all bare root right now, and I'm trying to decide what to do.
Pumice has long been a popular medium for orchids
>>2330829
Are there people who only use pumice?
>>2330837
Sure? There are all sorts of different kinds of orchids, why don't you try looking up specific types and what they like. There are some real fanatics who I'm sure have exact options.