Skunk #1, bout 3 weeks old in a bubble bucket. PH was a little unstable at the first 1 1/2 weeks, now steady at ~5.5. Started feeding 1 week ago using the Lucas formula and now up to about 250-300PPM (after subtracting hard water PPM). Being lit in a small closet (bout 2' x 6') with 12x 100w equivalent 6500k CFLs (light shared by 3 other plants). About 2" from the lights. There are two other plants in the closet about 1/2" from the lights with no burn since there's a fan going. Am I not feeding enough? The guides I read said that Flora Grow is good for adding back in some N; should I use some of it?