Mephisto Double Grape

Day 45: Watered with two gallons + 2 tsp calmag. Put fish bone meal in the soil. Watered til run off, runoff PH 6.48. Raised the lights a bit as the main cola was getting pretty close to it. Noticed that my exhaust fan output was weak, turns out the humidifier had clogged the prefilter with white dust. This is evidently a common problem. Using distilled water will eliminate it.