Capo420started grow question 4y ago I see defiencies/ excesses I'm just unsure of what is going on. I am putting in a nutrient ppm of 500ish and getting out 440-500ish in run-off.
Ph going in is 5.8 pH coming out is 6.5-6.7. I have heard coco will buffer to 6.5..running out of room here.. any ideas?