this is my first grow. i started with 6 seeds under some flourescent lamps. I now have 4 plants in st8 perlite. The ph is 6.2 to 6.8 heres where it gets dicey. i bought some fox farm big grow. N P K is only 6-4-4 i made a very weak solution 1/3 tbls/gallon. figuring only 6-4-4 I also added MG 15-30-15 was that a mistake? The plants have been going pretty good. All of a sudden the top laeaves look real skinny and curling down. no real color change just skinny and turning down. sorry no pics can anyone help me?