All leaves turn yellow .Help

Hi now first of all she's not gunna die so stop worrying so much. Yellowing leaves means she eating herself for nutrients now we use this to our advantage at the end of a grow with the flushing process but in this stage as you know its not good. The good news is she will recover if you give her what she needs. If you want to look at a similar problem I had then check out my Tropicana poison diary about 3 to 4 weeks ago i have the same problem and well look at them now. they are huge. and very green. A grower has said the leaves will not change colour I have found this not to be the case though this is nothing to be argued about because each strain is different. You never truly can know if its a problem or just part of the pheno. The breeders are not very descriptive when it comes to actually growing plants sometimes they will say certain characters of plants and other times they don't it just comes down to guess work and experience with each new pheno. So my advice up your feed considerably I suggest a ec of around 1.6 to 2.0 for plants this large. With that being mentioned the amount of feed you need is going to corollate with the size of the plant so larger plants are going to take more feed or higher concentrates than other smaller plants. Myself I try never to grow the same strain twice in order to maximize the amount of experience I have with each pheno. From my experience the way to tar all your plants with the same feed schedule is to constantly keep the plant with feed. though I do not grow in soil so this is possible for me. Unfortunately for soil growers the plants take quite a while to uptake the nutrients from the soil so even if they are there they cannot uptake it very quickly. This is all my opinion and none of it is fact. we all grow our plants in different ways and its one of the reasons we all love the grow diaries community so we can compare and share all of our growing experiences :) Great looking grow anyway and good luck for the harvest :)