some coco coir I see comes in bricks that say they expand. Do you just put them in water to make them expand? I have heard that you don't need to mix anything with coco coir but some people put coco coir\perlite in a 60\40 ratio. Is perlite preferrered? You are supposed to use special nutrients for coco coir but i have heard people using Earth Juice Sugar Peak.
I have also heard of a product called Earth Juice Assist for conditioning coconut coir, peat, rockwool. Would I need any other nutrients besides earth juice and will earth juice work with coco coir with or without earth juice assist?