There are pics and info from a Thread he created 4 weeks ago here.
https://www.rollitup.org/t/first-indoor-grow-week-5-flower-are-my-plants-in-trouble-or-is-everything-okay.944583/
Doesn't look like you got any good help on that thread 4 weeks ago.
Without even finding out anything more about your grow or your watering habits and just by reading your post and looking at your pics someone tells you to flush
In your spot flushing was probably a bad idea, it may have been what made matters worse.
What would make you think that that made matters worse? I'm not disagreeing with you, just curious, trying to gain as much knowledge as possible. The growth has seemed to have really slowed down on most of them. A couple seem like they havn't done much of anything for a couple weeks but yet they arent dead either.
Also back then before that flush I was watering them all at the same time which now I know is wrong. Now I'm watering when each when the pot gets light. Some are drinking extremely slow, taking probably a good week, maybe a day or two more than that, between waterings.
I'm watering about a quarter to third gallon of water with light nutes to no nutes at all (depending on the plant).
The majority are getting just 2 mils of AN Overdrive and 3 mils of Growth Science Rock solid. Only 2 have gotten any of my base bloom nute(botanicare) because they were yellowing, the others are still fairly dark green so I havn't been giving a base to those(this feed/watering ruitene is since the flush, before the flush I was pumping a lot of nutes into them). Ppms for the feeds without base are around 100, idk which scale, my ppm reader does't say. Ppm for my bigger hungry plant I've gotten up to 300 which stopped the yellowing but isn't turning the leafs green again yet either.
I guess my main concern here is for some type of mold, maybe root rot.. Idk. It worries me that they seem to be growing so slowly and how some have seemed to stop growing but are not dead. Maybe flushing with my tap water was what did it. It has a very high ppm(389)
Hope that can shed some light on if I have anything to be worried about