Ionic used to make a soil and coco formula but recently dropped the coco part on the label and now it just says for soil. They also changed it up a little on the npk ratios. I have been using it in place of the old formula and there is no difference. I talked to a rep from the makers of ionic here in the States and he assured me its all good to go with coco coir. I was worried since they changed it slightly that they might have lowered the calcium levels to make it more friendly to soil and soilless peat grows that use lime in the mix. But mine is rocking out just like the old formula. I really like ionic and the label dose is 4 tspn per gallon but i only use that on plants that have a fully developed root system. Half to 3 quarters strength is perfect from your photos. Up the dose a little later and your there. Full dose i think is somewhere around 700 ppm. I think that is a coir grows sweet spot. I been using the ionic line for years and it is some very good stuff. So easy to use. If you feed with the regular ionic you MIGHT need cal mag but i dont know. Ive only used the regular formula in my old raingutter NFT grows years ago. That stuff is very good too. Let your ph drift between 5.7 to 6.2 and I can almost guarantee the ionic grown plants will be solid and touble free with maximum genetic potential if your room is locked in with temps , humidity, lighting, and air. Good luck.
