P deficiency?

Well well well. what did i say ? u didn't lisen so u're right where i told u to be RUINING ur plant well done =(ъ

You have had a N defence at some point. Probably since seed, like ATLien415 said its old news with what we can see.. its a case of knowing what you have already given and work from there. Either add more pk and watch her if she burbs then dial back if she thrives your on the right path.. or opposite- dial back what your giving already and watch her and if she thrives you know were you stand... don't make to many adjustments so you know which change has work and not to stress them out as they like routine, they don't need to adjust ith the roots changing ph in the Rhizosphere etc.....and so on........ Good luck pal

Looks like N deficiency and a Ca deficiency to me. The fact you gave plain water and it got worse makes a 'deficiency' more likely, so that still tracks well. Overall EC is nice to track but doesn't help much with the concentrations of individual nutrient molecules. If you use products with a gauranteed analysis label, you can use free apps and websites that will add up all your products and spit out ppm per molecule. You can even use some of these free apps to calculate a dosage for each product to hit a particular array of target ppms for each, too. tracking individual stuff can help diagnose as well as become familiar with upper/lower thresholds where these issues start and never have them excxep for extremely rare instances. If you always see problems as you edge over 200ppm K then guess waht, that's too much K, all other factors remaining teh same. IT's a bit more complicated than that because the ratios of your nutes and impact each others' availability. So, depending onteh formula you may be able to go well over 200ppm k without issue... whether it is helping the plant or overcoming too much of something else is a different question. good formulas work on a greater variety of plants. If soilless, i'd shoot for targets that resemble the formula from masterblend, jr peters, megacrop, crop salts et al.. It is no coincidence that these fertilizer setups add up to a very similar ratio and overall concentrations. if in soil, this info still helps. tracking this stuff still helps, but you have an added complication of "What does the soil add, today?" - and that will change over time. Can still get to the same relative consistency, but generally a bit more of a learning curve due to more unknowns.

Just a word of advice here for discerning nutrient issues......asking people on a site with a picture of TODAY means the site responses will be for your conditions ~3 WEEKS AGO. Anything that you do to the medium will take weeks to show full impacts. Foliar feeding can be much quicker. The end-all be all to this discussion is that what you are seeing in the leaf with your eyes is old, old, old, old, old news for the plant. If you want real time diagnosis, the human eye cannot. This is where the tissue testing comes into play in commercial facilities. you can see the quantitative nutrient issues weeks before they are observable to the eye. Think, and act, with this basic knowledge in mind...minimize touches on the plant, and pinpoint what the issue was weeks ago before acting today.

Everyone is different, I'd give her a small dose of nitrogen until week 4-5ish of flower then let her cannibalize. Looks like you stopped giving her any Terra grow couple weeks ago, still going to need nitrogen for now so long as there is new buds being developed.

Ec is 1.6 -1.7 judging by state of your tips. Salt capacity is full. A plant needs a specific ratio of npk, mg, ca and sulfur. This makes up the 99% of everything a plant will need in its lifetime. Your medium is a medium. A middle ground. A temporary staging area. You add salts. Plant uses 60% of those salts, unused salts sit in medium. Apply more salts. Plant uses 80% of salts in that feed. So on so forth. Plant reaches ec capacity (salts full) But 50% of the salts are unused salts from old watering. Ec tells you salt capacity. Ph tells you composition of that salt capacity. At ph 7 the medium has 100% of available sites filled with cations (ca, mg, k, hydrogen or sodium and no4 nitrogen). Low base saturation at a pH of 6 can lead to nutrient deficiencies in plants, as the essential cations may be leached away by water or become less available for uptake. It can also affect soil structure and water retention. All your goody cations like calcium, magnesium and pottasium are not sticking to your soil and being absorbed just leeching right through. I just thought she needed a little nitrogen for a extra week. When you run ec high you need more oxygen in that rootzone than you would normally would to help with active transport. This is double important as microorganisms will scavenge oxygen like whores the more flower progresses. Higher the ec the less passive nutrient uptake becomes, once it stops being passive plant switches to active which will use alot of energy, scavenging more and more oxygen from rootzones. Soon as a plant switches to anerobic fermentation , let's just say nothing good ever happens. Ph skews from all the radicals etc. Very low atp production when compared to aerobic.