Need some advise....Growing auto-flower ladies. A little over 2 weeks old. Appox 2quot; high in growth. Using 300W led lamp about 22quot; from top of plants. 18 hours light, 6 hrs dark. Temp between 82 and 84F, humidity around 70%. Growing medium, potting soil(ProMix) recommended by various growers. Use Foxfarm Big Bloom 1/4 strength once after week one and 1/3 strength once after 2nd week besides plain distilled water watering in between. PH of water and neut seem good according to my kit. Now lower leaves on plants are turning yellow. Some worse than others. Plants seem to be healthy and growing inspite of this. What am I doing wrong!!?? Need some advise before its too late....Thank you.
