Ok first I got in over my head.
Second had these all downstairs in hallway, dining room, office trying use the sun and flour. Fixtures in house, seemed ok then winter happened. Temps in house dropped and fluctuated a lot highest 80 to lowest 50. Phals, oncidium hybrids, dendros and catts. At first used tap which a high ph(8.4) with a lot of TDS.now using water from water mill express6.0 ph not sure of TDS supposed to be ROStarted with MSU fert in summer, then moved to bettergro bloom and reg. in sept of last year.follow instructions cut in half. Weakly weekly. I have since moved these into their own room with 2 2lamp flour, 2x4 4 lamp about 1' above Phal900lum, 8" above on vids 2800lum, Catt and dens 6" above 9k lums. Temps hover around 75day, 60% h and 50 nite85% h I get my medium from repotme(imperial mixes). during summer seemed very dry, but winter seems very wet was pouring water over medium, then used pump sprayer was told that wasn't good. spots started showing up now the pest. Only use plastic orchid pots with slits or holes some clear some not, or actual orchid ceramic pots, but was told not to pot in those directly anymored which I do not. I am using a 16 in osc fan on low in that room. Try to water 3 times a week but really only 2 now.
I did have more but the number had dwindled.
