MG Organic may be too hot for seedlings, and especially for sativas like Hazes.
Are the first set of TRUE leaves showing problems, or just the little round seed-leaves?
Next time you have to water, do it gently but thoroughly- trickle water through there without disturbing the plants to try and remove some of the excess ferts. I'm glad you have extra perlite, that is a big help.
stinkyattic Reviewed by stinkyattic on . yellow/purple/grey seedling the leaves on 1 are curled under(1st node) also yellowing and now with grey spots, a purple vein in center of leaf. others arent curling under but are turning yellow w/ gray spots. growth is really slow for 24/0 schedual. Younger ones are still working on their first node and have nice deep green to them but the few that arent im concerned about.. Im using happyfrog soil in 5-7'' pots, wqatering with tap water every 2-3 days. Im curious if there is a milder soil out there for seedlings. Rating: 5