I forgot to add.....
I watered the two older plants 40 ounces of straight from the tap, well water (PH 6.6, 65 PPM) this morning. My thought being that the older plants where starting to show some CalMg deficiencies on the distilled water. I did a light foliar wipe with some calmg+ on a soaked paper towel, last night. This morning I decided to feed them with well water...which should fix the problem. I think...
The two smaller plants where fed 8 ounces of distilled water yesterday...in a ring around the plants, to hopefully stimulate some root spreading.
I'm considering dropping the distilled water for my well water. I have excellent water here...and since my plants are deficient on the distilled water, my thought is that the minerals in the well water will help with that.
The Delicious Seeds Dark Purple in the DWC bucket is being fed Sensi Grow, Carbo Load, and I use S.O.S. for a root beneficial.