A couple days after i transplated em into their 1 gal pots of the same medium i started noticing purplish stems on all the plants and small brown spots on some of the old fan leaves of just a couple of the seedlings.
THey didnt get fed at all until yesterday with a 1/4 strength of grow big and a splash of hygrozyme.
Is this most likely potassium def????
What should i change next go around?Just use 100% roots soil and maybe hit em up with a light nute earlier??