Fist time

My setup: HLG650R just below 50%, 5x5, intake and exhaust 6” fans carbon filter on exhaust tent is exhausted into a room not outside so air is recycled, 10 gallon fabric pots ( probably overkill), soil primarily Espoma soil mixed with pro mix (not sure which one sry) so far just watered with “ph’ed” water and occasionally organic blackstrap molasses I was told it helps the soil.? temperature never more than 10degrees difference normally 82 to 74 F, RH from 74 to 48 %, bag seed, 2months from the day they popped,
They seem to be growing slowly to me based on what I’ve seen from researching online. Went with a cheap ph meter noticed the yellowing leaves lucky I brought more than one so I tested with a new meter and got a much different result my old meter read 6.2 new meter read 7.5. So I thought possible deficiency of some kind iron maybe or nitrogen? But have done 2 waterings since at a PH of 6 and saw a slight improvement in leaf color. Since the few waterings with a ph of 6 the leaves continued to yellow I tested the soil ph and got 5.5‍ So I have watered with 6.5ph water. I might have forgotten stuff feel free to ask questions I’d appreciate some more experienced input!

Yeah bro that seems like a Nitrogen deficiency it's good to always keep a nutrient trio something like fox form that has NPK.

My girls was going through the same thing but luckily I fixed them on time

i could be wrong, but the larger fan leaves usualy go first b 4 the newer leaves. larger fan leaves turning yellow first or showing other signs in general are NP OR K related, where the newer leaves changing colour indicate a trace elament problem.
but the larger fan leaves on them look green and the tips are pointing down, indicating a nitrogen or watering problem.
but if it worked on 420 t's plants then feed them a feed like he/she did.
420 t, what did you give them? an NPK nute solution or some nitric acid in water or a single N rich feed??

Hello guys thanks for your reply’s up to this point I have not given them any nutes the soil tested at 800ppm so I thought maybe they didn’t need any nutes yet I will try that on the next watering. I give them half gallon of water every 3 days or so depending on how the medium is looking I don’t know if that’s enough but definitely not too much I know over watering is a problem so I’m airing on the side of caution without drying them rite out. I was also told it’s not good to have lots of run off with soil. The espoma soil Is definitely organic soil so didn’t wanna wash out anything beneficial.

420 T said:

Yeah bro that seems like a Nitrogen deficiency it's good to always keep a nutrient trio something like fox form that has NPK.

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Hey guys thanks so much for all your input I stabilized the ph then gave them some nutes and they are on the rebound lots of new growth and color is returning