plant with defficiency(s)

Many thanks @HarbringerOfHarvests and @UKgrowerZ I will be definitely staying clear of andvanced nutrients on my next run. Blindsided by 'Cup winning nutrients' and several YouTube vids, I made the wrong decision from the get go. Ph of the water going in is at the correct level and ph meter has been recently calibrated so no issues there as far as I'm aware, I have read about using dolomite lime to stabilise the ph of the medium but not much info on if this can be used after the plant is halfway through its life cycle. Apparently it takes around 4 weeks to start working anyway so I think that would be pointless. Do you think watering at a slighly higher ph than normal ( say 7.3) , would that in turn balance out the medium or am I fighting a loosing battle here ? :( Many thanks for the reply and I hope upur all staying safe X

Advanced Nutrients is terrible. In my humble opinion based on using it on my own plants and also trying other stuff and that's the first problem. Advanced Nutrients is an awful product.. Loading your Medium/reservoir with whatever it is they use as PH buffers does not help cannabis grow...

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Many thanks.@nobody01. I think the AN are the problem tbh. This is my first grow so could have researched what nutes are best tbh. After doing some digging, I believe its got something to do with the ph perfect tech in the nutes which is taking the ph of my soil below what it should be I tested my ph run off which came out at 4.9 at first which sent me into a panic so I ended up flushing them with plain tap water (ph of tap water is 7). Reading about however I have had read mixed opinions on weather testing ph runoff in soil is even accurate. I have also ready about using dolomite lime to ballance the ph of the soil but can't find any info on if this can be used after the plant has already been planted. Apparently the lime takes a minimum of 4 weeks to actually start working (but I could be wrong) I would say approx 2/3 of the fan leaves on the first plant are curled and dying. Do you thing this plant is even worth carrying on with or should I scrap and start fresh with a new medium and nutrients ? Many thanks for the reply Much love

dial back on fertilizers... likely lockout based on what you've done and how it reacted (not criticism.. it looks like cal/mg deficiency for sure, even in the red lights. you picked 1 of 2 options and now go with the other.) i've seen this as a consistent result from people using AN, but could be wrong.

Sorry my friend but without clear pictures I don't think nobody could guess what's going on with your plans please try to take pictures without the purple lights do it before they wake up or after they go to sleep. Good luck with your garden