1st grow - Auto Northern Lights

Day 22 (April 23) - Adjusted LST. Day 23 (April 24) - Fed with 1.5ml/litre of Advanced Nutrients Sensi Bloom A, 1.5ml/litre of Sensi Bloom B and 0.75ml/litre of MagnifiCal until approximately 22% runoff. PH of feed and runoff both measured at 6.2. Day 25 (April 26) - A light green or yellow coloring is beginning to show on the lower & older leaves – This may be the beginning signs of a magnesium deficiency. The previous feeds of MagniCal may have been too low for Promix with LED lights. As Cal-Mag is hard to over feed, I will increase MagnifiCal to 2ml/l during the next feed and will monitor. Day 26 (April 27) - Mixed a Magensium Sulfate foliar spray (3/4 tsp of Epsom salt in 1 litre of water). Misted over plant to help prevent magnesium deficiency. Day 27 (April 28) - Fed with 1.5ml/litre of Advanced Nutrients Sensi Bloom A, 1.5ml/litre of Sensi Bloom B and 2ml/litre of MagnifiCal until approximately 20% runoff. PH of feed and runoff both measured at 6.2. Some leaf tips turning yellow, which appears to be a slight nutrient burn. Will continue to monitor.