@Psilocubensis, ppm that i feed is around 1200 ppm drain comes out around 900 as soon as ppm will rise above what i feed i’m flushing it and then refilling again with full mix just making sure drainage ppm and ph is in range its little 2 much 1200 ppm for this stage but flowers are 2 close to the light they require more ppm so i’m just giving maximum till drainage ppm starts raising thats a sine for me that plant is not handling that amount and + its coco i water everyday to make sure it won’t dry out pot is small 2 for this plant its drying and if coco dries ppm rises cuz water is evaporating and salt is staying there in soil i won’t recommend running maximum ppm for certain stage p.s iI thought that was comment for the last weeks ppm i mentioned, on a 4 th week the ppm monitoring is the same i just feed maximum and check on drain ppm if watering to watering its going up rises more then i pour in i just flush with 2-3 l of water with depending on stage veg with cal mag200-250 ppm flowering with some pk booster 300 ppm and then starting again feeding it on full strength