purplelicious
Well-Known Member
Coco is a fail substrate. Most companies harvest it from the ocean, it is full of salts and then they try to wash it. I found one company that had inland coir not harvested from the ocean. The medium has a memory and likes to be salty if you ask me, that is not science just my observation from growing with it. Also if you do a ppm test on coco before you use it you will be surprised. Isn't it supposed to be inert? Just take a few cups of coco and mix it with water then strain it off through a coffee filter and test the water for ppms. It's always really high like over 500. So that's my opinion on coco. I used rockwool for 15 years then switched between soil to coco and now very recently I'm in a true hydro setup with only hydroton.