Puzzled

Seedlingss are sensitive and loove a " Poor" growmedium to start. So i blame your Soil for the Damage. get any lightmix for MJ-Growing and you will see, no more burnt tips in this early stage. I do my own soilmix, and my Basic reciepe is even for the most sensitive plants. Just check my Diary with the reciepe " The big green ones"

Hmmm, if it has been consistent. I use Foxfarm Light Warrior (ph?) in tall seedling incubator with fibre cups. I use only distilled water(ph?), and just mist (spray bottle) the cups twice a day at about 73 degrees. The seedlings usually are a little pale and leaves don't get real green until the second set, in my experience. I don't use any seed starter or other external feeding as the LightWarrior has everything you need. It could be genetics as I had two different strains of "free" seeds from Seedsman, fail after one week of germinating (they did not look at all after germinating). In closing if you have had good luck in the past and all things being static, I would wonder about my present seeds. P.S. If the rough start does not affect the quality of the plant in veg or flower, is this really an issue? 😕