FS#3 fell over, I added support and turned up the light and it is strong now. Still the biggest. Purple stems
FS#4 is standing strong and tall. Green stems.
FS#5 was taken out of the tent for being stunted and then got fungus gnats.
Humidity in my area went way up due to weather RH was about 30%-40% with out humidifier. Caused me to adjust my air flow.
Using general hydro flora 3 part plus CalMag. 1ml/L of all 4 solutions. PH tested using General Hydros test kit. I noticed if I leave my mixed nutrient water for a week it raises in PH to 7 and I wonder if the same thing happens in the soil? I don't have runoff yet to test.