Thats all youll need as far as coco only nutes, in my opinion anyways. I think the description says theyre made to be used with the rest of the AN line thats not coco only. I would wait on an answer from someone experienced in coco to tell you if you would use the same amounts as soil-less medium before you actually do any watering but if youre ordering off the net or going to the store you should be able to just replace Sensi A&B with the Coco Sensi A&B and buy the rest of Tang's nute list, adjust ml/L if necessary, and grow some kick ass plants.