Hey guys, so im gonna start growing and ive decided to try out DutchMasters lineup of nutrients and additives. they have a nice nutrient calculator to tell you how much to use and when, what the PH level hould be, the PPm'sm and so on and so forth, the problem i have is when looking from the first week to the second week, the amount of nutrients increase, i dunno whether that means, every week replace the water in the reservoir and add the more nutrients or refill the water and add the difference between week 1 and 2 attached is a file with the chart, if someone can just explain what happens from week to week with the increase of nutrients