Well-stated "Babe".
I would disagree about the humidity being the key factor with phals though: it's temperature.
Most phals - despite their willingness to tolerate household conditions - are really warm-to-hot growers. When you put them in semi-hydroponics, the added evaporation from the open, airy medium can result in cooling the root systems to undesirable lows. That is particularly an issue in dry environments (and how one might conclude high humidity is key) and ones in which we push the thermostats down to conserve energy.
If you can keep them warm, they thrive in S/H. I have sold a ton of heating mats to folks specifically for their phals, and now even have some long strips that work on windowsills.
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Hybrid Mode
