here are some photos...i'm beginning to think it may be a ph problem because three of my plants are very yellow...soil is happy frog from humbloldt...check em out...the one looks pretty sick...they've all filled in nicely but the leaves are mighty yellow and facing down...i've only fertilized them once in the last 3 wks and it was with a very light dose of liquid karma and bio-bloom by biobizz...any ideas...is it ph or a deficiency