I am using coco coir for my Mix and it is working great. It has been about 4 weeks since I planted mine and just getting ready to make my first cutting. I used Only a good PH water to start with because the seed it self gives the plant everything it needs to get started, and then I after a week or so started to introduce a good ph water with
nutrients at half the strength. I keep it in an area that gets half the sun and All is doing well.
I hope that helps
Simon