First Attempt - Auto Ultimate - Failed

Beginning of week 4 and I can confirm that I'm a killer 💀 I was hoping that the plants might recover, if I simply leave them alone for a few days and wait for the soil to dry out, but as you can clearly see in the closeups the plants don't take up any nutrients, which would be the result of them being overwatered. This also explains why they didn't develop at all and show heavily stunted growth at day 22. I was under the impression, that I was actually giving them very little water - half a cup/100ml every two or three days, but in combination with the dark rich soil that holds water very well that was apparently waaaay too much water for these plantlings. A tenth of the amount of water would've been enough I suppose. I'll still let them be for the moment and see what happens to them as I wait for my order of perlite, vermiculite and mycorrhiza to arrive, which I'll use to improve the soil for the next attempt at growing. Thanks for following this diary and I hope that it'll be of some value for other growers nevertheless. Day 23. As you can see in the pictures there's nothing miraculously changed during the last 24 hours and I didn't expect it either. Plant 1 and 3 don't look as bad as plant 2, but I'm very very cautious with watering them now and I only gave each of them plants three dashes of water from the spraybottle today. If nothing much changes until the end of this week I'll start a new batch with hopefully improved conditions and a better understanding of how to grow cannabis. Day 24. Just misted the plants before taking the photos, nothing else today. Still watching them and acknowledging all my mistakes that lead to their sad state. I made a contraption that attaches two old computer-fans to one of the vents in the tent, sucking in air and gently blowing it over the plants. I can regulate their speed if needed. Day 25. Nothing exciting happened. I still refill the humidifier and keep the lights on, but as you can see in the pictures them plants really don't evolve at all for the last three or four days. I guess the rootsystem is simply too heavily damaged. I'll probably dig plant 2 out tomorrow to get more insight into what it really looks like and get a better idea of how to adjust for my next attempt. Day 26. I took plant 2 and dug it out to check it's roots and the soil. As you can see in the picture, there's not much root-development at all. There's one long root that dug down to the bottom of the pot and very little root-development besides that. The soil isn't wet at all. It's light and airy, yet moist. I expected the soil to be more compacted from the watering over the last month, but not at all. So I can only scratch my head and am left totally clueless for why my plants don't want to develop roots and grow. The other two plants are left alone and only got two, three dashes of water in the morning from the spraybottle. They show no significant development. Day 27. This grow-diary comes to a close at this date as no more progress/development has taken place over the last week as can be seen in the pictures. I dug out plants 1 and 3 and they look the same as plant 2. Very stunted root-development allthough the soil in the pot looks physically perfectly fine, light, airy, moist yet not wet. I've started a new grow diary, which will hopefully develop better. Thanks for watching.