Stan, The plants seem to be growing (height wise) fast (see pics). One plant (2nd. From left) appears to be starting blooms (you may have to zoom in, but there appears to be three –
Epson salt time?) However, today I noticed some discoloration on the leaves on the plant with blooms. Not every leaf, but more than one (again, see pics). On all four plants, the tips or edges of the cotyledons appear brown or dried out. Should cotyledons be cut off?
nutrient timer still running 15 min off, 3 min on, 7/24 (any suggestions on timing?). The aerator and heater run 7/24 as well, and PH seems stabilized @ 6.0 (checked every other day). I try to get the plants as many hours of sunshine as possible, but between recent cloudy days and exceptionally high winds, I doubt its more than 8 or 9 hours a day, but I do leave lighting on through the night or whenever the garage door is closed. Appreciate your “prognoses” of what I’m seeing, and any advice you have. Thanks, Gary