I have some plants I am vegging to eventually put outside. Now in 3gal cloth pots under T5 lights. I have done it successfully several times before.
New dirt with no added nutes, RO water at correct Ph, quality seeds. Not over or under-watering them.
What baffles me is it is only a couple plants.
On a couple plants, some of the bottom leaves are discoloring. As you all know: research will give you 5 different answers. Not enough H2O, too much H2O, too much N, insufficient nutes, cal/mag... The thing that gets me is it is only a few plants and not all. Temps are fine, water is right, fed them lightly one time... Any suggestions from real growers?