Safe Soil

[Spectrum]

I need to re pot my ficus but I'm not sure whats a safe soil for my little dude. I bought natures care miracle grow potting soil and something called organic harvest potting soil which I've never seen before I also have coconut husks to mix in if needed..... any opinions on either

 

[NvC Dex]

I've heard of someone using Happy Frog Potting Mix... Not sure how safe it is for Chams. Maybe you could look into that...