So these are 21 days from germination of seeds, and I have 5xLSD (fem), 4xAurora Indica (n), 3xKandy Kush (fem), 3x LA Confidential (fem), 3xTHC Bomb (n), 1xPure Afghan Kush (n) in 6" rockwool cubes under a 600W @ 75% (~450W) . Currently, I have been using tap water (90PPM, 9pH) and adjusting...