Robertsanswered grow question 4 years ago You are cal mag deficient If all your numbers are in check as you say. Coco coir is a great substance to grow in beside the fact it absorbs cal mag really bad. I have about a 30 percent in my pots but after base nutrition amounts, I add 1 to 1.5 ml to a liter extra cal mag to compensate. I think I am still on lower side honestly. Good luck and happy growing. Enjoy the buds, look tasty. 🌲🌲🌲👊