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GrowingGrannieanswered grow question 4y ago
Classic potassium deficiency... These ladies are in flower now and no longer need only grow nutes... you need to start your bloom nutes, like now... I would also worry at this point, since you've been giving them only grow nutes, that you've created a nitrogen toxicity which will lockout other nutes such as calcium... so flush your plant - 3x the pot volume of pH'd water but into that last bit of water, add some bloom nutes only... then let her dry out. When you resume watering/feeding, if you feel you MUST give her grow nutes, only give about 1/4 strength and really pump the bloom nutes. A PK booster would also be very good to add in...
Good luck
LottaBudsanswered grow question 4y ago
You're using too much BioGrow and too little BioBloom, and you might also want to add Calmag. Around the second week of flowering, I usually give my autos a max of 1 ml/l of BioGrow and 1.5-3 ml/l of BioBloom. I might completely skip BioGrow or only give 0.5 ml/l since they are already close to nitrogen toxicity.
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