These are TGA Deep Purple a little over a month old. Feed them for the first time 3-3-11 FF Big Bloom 1/4 strength. In a mixture of Spaghum peat, perlite, and vermiculite. Temps between 70-85. 150 HPS and I had just taken clones if they look a little 'sparse'. Lower leaves are slightly brittle before they yellow. First 2 are the same plant, 3rd pic is second plant. PH is 6.5. Thanks for any help.
