thank you so much, i have twelve plants i can grow legal, they are in 15 gallon containers, i will look into this Seachem neutral regulator. the idea of using the distilled water would run into to much money, buying water. Last years plant did not seem to mind the extra calcium, i was just so concerned with the purple in the plants, i have been looking for an excuse for what to me was a strange color. All of the plants that are not called purps do not show signs of purple leaves and stems. Mountain from a mole hill, growing and learning, next year will be a much larger harvest. lol.