Thanks Frank! Got it, I’ve got some homework to do.Some growers, myself included, have had a lot of success using modified hydroponic pots for kovackii. I go into much detail in the year end issue of the Orchid Digest. There bigger species, kovachii, boisserianum, longiflium, caudatum, etc., won't culture well in a tray. Schlimii might although I've never seen it in a tray. Those species that live below the high water line along the banks of rivers need deeper pots. Forget trays for those species.
Best,
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