Becca, a plant that has adjusted to a wet environment usually perceives the moist LECA environment as an improvement, and adjustes very quickly.
Linda, if you're growing with the plants standing in a tray of water, you ARE growing semi-hydroponically, just not with an inert medium.
Mary, bark chips, CHC, perlite and the like are not "normal" media for phrags, either. In nature, they tend to grow in moss, mud, clumps of dead grass and rocks, often with their roots constantly submerged in the running water of a stream.
In "domesticated" orchid culture, we are trying to find a method to provide everything the plants need, but in a manner that is convenient for the grower, and not trying to duplicate the plants' environment in nature (I hope my words are properly expressing my thoughts here). In nature, the plants are often growing in very much of a "survival" mode, while we try to optimize the culture.
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