Leave tips are burnt and leaves are light green

@Roberts Thanks for best answer )) i feed her today as you said, Hope she will be better ))

Oh, I forgot to add, forget molasses, it does almost nothing, give your plants fulvic acid, humic acid or amino acids (or all 3 for best results), these actually do something and are probably 10,000 times more beneficial than sugar water (molasses). I can also highly recommend, actually insist, adding som mycorrhizae to you substrate next grow, the benefits to your plant are enormous and after discoverig this "wonder product" a few years ago, I would never grow without them again. They may seem a bit pricey, but believe me, are worth every cent. You will have to feed less and the plants almost seem to grow like they are turbo charged. I use "Mykos" from Xtreme Gardening, but there are others, like Great White Shark, but I have not tried it, because Mykos has worked so well and when you are on a good thing, stick with it! Both these products can be found on EBay if you have trouble finding them locally. The results are noticeable, quantifiable and most importantly, real. And no, I don't work for them or receive any "kick backs" for recommending Mykos, I am just a happy customer and a true believer in their product and the power of mycorrhizae! Cheers, Organoman.

The yellow plant needs more nitrogen, this yellowing this early in flower is usually caused because people switch to bloom nutrients too early. Cannabis still needs adequate nitrogen in early flower. Give it two doses of half strength "grow" nutrients instead of bloom nutrients and she should bounce back. After the two feeds with the grow nutrients, go back to the bloom nutrients. What I have been doing for close to 30 years and which works well for me, is to continue with grow nutrients for the first 2 weeks of flowering, then switch to half grow and half bloom for the next 2 weeks, before finally changing to straight bloom nutrients through until maturity. This seems to produce the biggest buds on plants that don't completely exhaust themselves and end up a sickly yellow all over come harvest time. Hope this helps, Organoman.

Also dont forget to add some sugars in there. Molasses is a great carbohydrate. You plant looks hungry for food aftet being flushed. Organic liquids can help it bounce back easily

Your plant looks very healthy! No need to flush. Keep doing what you're doing as long as discoloration doesnt spread to the entirety of the leaves. The tips of the leaves is a sign that your riding a thin line of too much nutrients but not so much that the plant cant handle it. If it spreads then back off just a little but you're in great shape right now. Remember as your switch to flower any liquid nutrients need to carry very, very little nitrogen and more phosphorous and potassium.

if pH is in line, could be a magnesium deficiency. if you can calculate your total ppms and per molecule ppms, Mg should probably be around 80-90ppm. i have hard water, so you may need more than me. other factors are invovled.. assuming this is ballpark 650-750ppm mix or ratios of other nutes could make that suggestion useless. 120-140 N 50ish P 180-210 K tap water will impact this.. RO will definitely need more Ca 100+ Mg 90ish S 110-120ish Autos probably better near 650ppm to start and adjust as needed. won't see issues as predominant as this, i bet. will be small adjustments due to minor imperfections found. will work on nearly all strains except maybe a few in nearly 3 years. Conservatively, >90%, so far, but probably pushing 95% give or take. The water you use will be the main cause of differences.. and would highlight what impurities are in my drinking water, lol.