First Grow - Windowsill RQS Autos

Day 21 after germination Purple Queen Auto had quite some problems and is pretty stunted. It was treated the same as every other plant, but for some reason didn't develop as well. It seems to start to rapidly recover now. There were 2 aphids on the Purple Queen Auto and one thrips (is this singular?) on the Royal Jack Auto. 3 days prior to the photos all plants were sprayed with neem oil solution twice (about 10ml/l) and watered a bit (because they have been watered the day before) with neem oil solution (also 10ml/l). This resulted in quite unhappy plants with droopy leaves, but they recovered after 2 days and now look great. No fertilizer has been added since mixing in some with the soil and water had to be given seldomly (once a week). This seems to be on the verge of changing, the Northern Lights Auto will probably need watering more often now. Northern Lights Auto and Royal Jack seem to be the most promising ones. More leaves and thicker stems compared to the other ones.

Don't need that much more water. I have added nutrients to the water with target of a bit over 1 mS/cm. This is way less than what's on the packaging (maybe 1/4). The Northern Light Auto seems to be on the verge of flowering. For the rest is it not that clear, but they also seem to go in that direction quickly.

Haven't updated in a while and forgot quite some information. All plants are now in the flowering stage with Quick One being the furthest ahead closely followed by the Northern Light Auto. Some health problems on Quick One and Royal CBG. Both show yellow leaves in the lower parts. I suspected it to be a nitrogen deficiency and used 3ml/l of the Substral nutrients (vegetation). This call may have been correct for the Quick One, but the Royal CBG is probably overwatered or overfed as she is also showing clawing of some leaves pointing to nitrogen toxicity from what I've read. All plants (except the Royal CBG) drink more now, I have to water twice a week with about 1-2l per plant per watering. The Royal CBG drinks less and seems to be stunted a bit. Let's see if she will recover. The Purple Queen recovered quite well overall, but it is definitely the smallest plant. The Quick One had a thrips again a few weeks back and I treated it with Lambda-Cyhalothrin (Compo BI 58 N) on the foliage and half an hour later showered the whole plant with tap water. I hope that this is not a health hazard, but I suspect it's okay because Lambda-Cyhalothrin doesn't seem to be that stable after googling it and it still has multiple weeks until harvest. I can't detect milky trichomes yet on any plant.

I harvested it, because it did not progress any further. Most of the fan leaves were dead and it was drinking almost nothing. It still had more white pistils than I would've liked, but all trichomes were really cloudy. The buds are a bit airy and small, but that's alright for the worst plant out of my first grow.

There should be way more text here, but growdiaries is not saving it.