That coco is some fantastic stuff isn't it.
Ya may be an organic grower but salts are what drive the life in plants. Organics have many salts. They are just slower to release. Synthetic man made salts are readily available but don't stick around as long as the organics.
I kinda like it that way. Ive usually got a pretty good idea what's in the pot nutrient wise with using salts. But when using the organics I don't know and if I run into issues I can't just dig out the problem..lol. With salts I can just make an adjustment and roll with it.
The whole world grows cannabis in salt water..lol.