10 days ago the symptoms were very minor, thinking I was facing a deficiency, I started a light irrigation with a liquid fertilizer npk 4 3 6 (biobizz biogrow), and with biobizz algamic, practically an algae extract.. but as the days went by the symptoms got worse, and I found myself with the situation you can see in the photos. I think it's a nutrient lockout... what do you think? the plant is in a 200 gallon mound, the soil is composed of peat, coco, compost and native soil (clay and limestone) fertilized with an organic pellets NPK + Ca, S, Mg 6 5 13 + 10 15 2