First Grow

I started out the seeds in Fox Farm Ocean Forrest soil and after three weeks the run off from watering has finally dropped to below 400 parts per million. The leaves of the plants are starting to curl to the side. Looks like a cal-mag deficiency. Fed plants with the General Hydroponics Flora Series and Botanicare Cal-Mag plus @ 750 ppm with ph 6.2 Moved plants to my 3x3 tent and switched from my 100 watt fluorescent to the 315 cmh. I am running the light at 60% power and hung it at 2 ft from the top of the canopy. The Botanicare Cal-Mag plus seemed to work and all the new growth looks normal.