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If I was telling someone how to feed in coco coir. I would say : Use a liquid A and B nutrient for veg. And use a liquid A and B for flower with a bloom booster for the last half of flower. I would use silica in veg 2 times and 2 times in flower. I would use cal mag the same way. Use a biological fungicide in veg and flower every 2 weeks.
That's my basic coco coir nutrients...
1 0 0 0 0 0 0