Deficiences or overfeeding

ps. i forgot to add; since your leaves are uniform / dark green, they have nutrients. this factors in when i say its "over-feed" aka nutrient burn.

Since you are using a soil grow, check ph and state that you feed them, its most likely an nutrient burn. The plants have to much nutrients. You should not be feeding anything else then ph'd water, if its fresh dank soil then it's already filled with nutrients that could, depending on soil quality, last you up to flowering.

Hello growmie good going atm have u increased the lights at all or is ur fan working too close to ur baby so giving light stress ...I'd say it is stress unless u think u have put a little bit too much N of the N.P.K solution check back through everything or anything u might have changed and eliminate 1 of those things at a time to see if u can see if uve changed something too quickly good luck I'll keep looking in at ur diary 😉