Mephisto Genetics Freebie

Plant put on plenty of growth this week. Sorted out the calcium issues from what I believed was a feed mishap but now think it's the bag of Canna Coco Pro Plus not being buffered correctly. All the plants that have been planted from this bag of Coco have experienced the same calcium deficiency problems. There's no way I screwed up all the feeds, and even seedlings are now experiencing the same problems. Adding extra cal mag between 0.5ml/l to 1ml/l seems to help. The only problem is the extra cal mag raises EC a lot and therefore makes it harder to increase feeds and supplements without getting into crazy EC numbers and burning the plants.