As you can see, one of my plants has a leaf turning yellow as well as the cotyledon on that one turning completely yellow. One plant looks very healthy, and the other two have some leaves drooping. I have transplanted all of these about 48 to 60 hours ago into new pots. Before they were all in miracle grow, now they are in a mix of 85% ffof and 15% perlite. The temp is ranging between 68 and 81F through the day and night cycles, while the humidity ranges around 30% all the time. The light I have above them is about 16 inches away from the tops and is a 400W MH bulb. I watered these plants immediately after the transplant, about 250 ML each. The one main factor I suppose I haven't checked is the PH levels in the soil, which I am planning on doing later after I purchase a kit. Any ideas as to whats wrong with the 3 plants while one remains to look perfectly healthy?
If you don't know what your ph is that's probably the problem. You can't do any diagnosis without knowing your ph. 4th grow(Apprentice) - BC Big Bud 1200w
