Hi all, plants are auto flowering almost three weeks old, get 18 hours light with 125w cfl, growing space walls covered in mylar. Temperature kept between 21c and 25c. Grown in coco mix with perlite, watered with ph 6 water. They're dying! What can I do to save them? Edit: I stupidly forgot to allow the water to drain off the plants so I think maybe they reabsorbed the run off and now the ph is too low/salt levels too high. Should I flush them to try combat this? I tried last night but they're not improving. Maybe I didn't flush them enough?