thank you all for your willingness to help, everything you wrote about is known to me, I know about soil and hydroponics, I have successfully grown peppers in hydroponics, I understand that you bet on simple mistakes such as too much water, wrong soil, too strong light, etc., I understand it I would have thought there myself but I am not to blame for the hemp dying tomatoes, it is the air to get me to where I am now with this knowledge, I spent 2 years trying and learning, reading articles from all over the world, I would never have thought that it's air, but when you try everything, you changed everything, you do everything step by step according to guides, according to instructions and you still suffer sad failures, then doubt comes, I had it, 2 years of struggle, loss of money, sadness and nerves, a year of break because I doubted and for 2 months I'm looking again and I think I finally have the culprit, the air is 100% to blame, the experiment with tomatoes confirms it, now I have to find out what triggers these harms We have good connections to the air, for 99% it will be the old carpet but I will find out when I replace it with a new one, thank you all again.
By the way, the English word for chemicals leaching into the air is "offgassing" or "off-gassing". Should make it much easier for you to Google similar cases and solutions. So many poor guys struggling for years with sick plants before they realize they have some paint, floor sealant, or insulation poisoning the air.
Good luck in the future