Yellow leavs in veg, bc of to much fertilizer?

I think Mouse hit the nail on the head with this one. They look underwatered too often if that makes sense. When I direct sow seeds in a bigger pot I leave a handful size amount of medium where the seed is nutrient-less and only water mostly the center but moisten the top enough so it doesn't completely dry out,and start with soil that has about 10 percent moisture to start with. With fabric pots they should not stay wet too long depending on how you mix your soil, and in veg, you can push your humidity and temp pretty high and drive growth so it can consume more water and put out roots fast so watering is not as tedious. 10 percent airationis on the lower side for soil, you may benefit from slightly more perlite

water when the plant needs it, not on a set schedule. The pots are a bit big for a seedling but I get how transplanting autos can be a problem. The issue I see here is that the entire medium is not getting wet and then roots traveling out are getting extra dry when they move past the moist zone, but having that much medium wet with no roots in it is dangerous for growing nasties. catch 22. I think you issue lies in what you are feeding them and how, there is no information on what you are feeding them in the diary. also cannabis does not need a humidity dome unless your ambient air is around 20% RH. Also your diary says its 90% soil but tat does not look like soil to me, more so soil less and if I had to guess peat based.