Herbies Beginner Auto Mix Grow

Day 43 - And so begins week 7! With the addition of their first calmag feed yesterday, I engaged in some light defoliation of the lower leaves and those showing various deficiencies. Still not 100% that the issue is a deficiency in an immobile nutrient given where the dying off has been taking place, but what do I know? The biggest issue with the grow at present is that the AFA and GCA remain more advanced/developed than the tardy PCA. As I've engaged in more LST with the PCA its canopy has expanded outward (it can afford to do so as it has no neighbour adjacent on 3 sides) but as a result the budsites are significantly lower than those on the other two plants. This makes light distance judgment a hassle. Anyway, DLI readings for each plant at their top cola as of the beginning of the week! GCA: 33.9 DLI (39.5cm from top cola); AFA: 35.5 DLI (42cm from top cola); PCA: 25.5 DLI (44cm from top cola). Which means PCA looks certain to be the 'gimp' of the grow, but at least its getting a broader canopy now. Day 44 - Dropped the light down a bit yesterday so the entire grow is looking more yellow when photographed. Coincidentally with that, the AFA and GCA (particularly the AFA) are showing some incidental browning off on upper leaf tips. I don't know whether this is something that's been exacerbated by the Calmag and increased bloom nute feed (it doesn't look like an excess) but I figured I'd do a plain water pH 5.8 feed just to ensure that any nutrient salt build up gets wet. Despite putting a litre through each plant I had zero saucer runoff at all, which might indicate the girls could be fed more. Not keen to as humidity is still running around 67% average and we have some shockingly damp weather flowing through. Will be keeping an eye on the browning leaves and seeking further advice tomorrow if necessary! Day 45 - Turned up this evening to find humidity clocking in above 70% and the AC Infinity working noisily trying dry things out. No sign that the situation on the AFA has got any worse with brown splotches/yellowing though the pics look hella yellow with the light dropped a bit. The buds on the AFA are really looking beautiful and it would be an absolute tragedy if bud rot set in given the humidity. The oscillating fan is giving them some constant airflow so hopefully it keeps things clean. Put in a bid on a 2nd hand dehumidifier just because it seems like it might help to dry things out in the lung room. We'll see! Also need to get a loupe to inspect trichomes as I feel the AFA buds might be approaching milkiness though its pretty hard to judge with the naked eye. Day 46 - RH still waaay too high on day 46! Had apparently been averaging 74.2% throughout the day. Noticed also that despite not watering yesterday the soil in each plant remained damp to the touch, guess that reflects the average 0.67kPA VPD meaning the plants aren't transpiring in the sweet spot. Going to step up efforts to sort a dehumidifier. AFAs leaf deficiencies don't seem to have worsened but I do have a sinking feeling about the possibility of bud rot if I can't get this humidity under control. Another option is to step up the oscillating fan to full bore but I get the impression it might squeal. Eeeek! Day 46 - RH still waaay too high on day 46! Had apparently been averaging 74.2% throughout the day. Noticed also that despite not watering yesterday the soil in each plant remained damp to the touch, guess that reflects the average 0.67kPA VPD meaning the plants aren't transpiring in the sweet spot. Going to step up efforts to sort a dehumidifier. AFAs leaf deficiencies don't seem to have worsened but I do have a sinking feeling about the possibility of bud rot if I can't get this humidity under control. Another option is to step up the oscillating fan to full bore but I get the impression it might squeal. Eeeek! Day 47 - Once the star of my grow, the AFA's leaves are looking sicker by the day. VPD has been averaging 0.74kPa over the last 24 hours as our mini-rainy season continues. Girls got a proper nute feed today so the AFA will either rally or get sicker I suppose! Soil hasn't really been drying like it used to at a lower VPD. One way or another I'm going to sort the humidity issue by the weekend. Day 48 - My AFA has been a sick girl but I feel like she may be turning a corner after the last feed as she is starting to look frosty and smells so very, very sweet. I just basically but my head between the colas and the light and took in breath after breath of her sweet, sweet stickiness. Day 49 - Decided against a watering today as couldn't get a knuckle deep before hitting the vein of moisture below the Sunday ranch. Have closed off the lung room to the original wardrobe and got a mini dehumidifier operating in there but 2 hours of it working had not produced noticeable moisture reduction (in fact the humidity was heading up). Will reassess tomorrow when my girls hit 50! Woooo!