that looks like it makes sense according to that chart. ive never dropped my ph below 5.8, have you yourself tested going lower that 5.6 ph?and how well were the results from going form 5.8 to 5.6 and just staying at 5.8 the whole time?
looking at the PH/Nutrient chart it appeared to me that most of the flowering nutrients were more prevalent in the PH range between 4.5 - 5.0. Have you ever tested cannnabis at these low ranges before? Ive always just stuck to 5.8 - 5.9 with great results. you thoughts?