alway ph at 6.0 hi forgot and give 6.4 ph that lock the nut for the plants for 1 week and half i have problem if is not ph at 6.0 all the way untill the end and also use Hp Promix hi use coir coco was too humid use soil Hp Promix is better and give .05 ml half of 1ml the second week and put .6 untill 8 inch and star the nutriments calculator first week .76ml for 1liter and 1ml liter until 1 feet and star 5 ml for 4 liters of the nut chart for the first real week if you use coco dont use magnifical from remo nutrient