You're probably not going to get a decent answer unless you write the details of the grow: soil type, how much? nutrient type, how much and how often? your answer is in the details.
Soil type: roots organic 707, and roots organic normal blend.
How much: 11 plants in 45 gallon pots 1 in 80 gallon pot = 575 gallons of soil.
Nutrient type: down to earth dry amendments, gaja green day amendments feed weekly to ensure plants are adequately feed... some liquid bottled nutrient from vegamatrix... also I've been giving my plants alot of seed sprouted teas and compost teas ...
How much nutrients: lately I've been giving them a fuck ton of nitrogen because I thought the leaves dieing from the bottom up was a nitro deficiency... Ive also been giving my plants silica, and aloe vera powder every feed... in other words i havent gave my plants a straight water only feed in forever because I always think they need something extra in the soil but i gotta remember I'm doing no til...