If you are going into 100% coco that is part of the problem right there. You have not given your roots nearly enough oxygen and that is why they are not doing as well as you would like. I have found a 25-30% ratio of perlite in the coco will give the ideal oxygen content for the prime root development. While most people are under the impression CO2 is the primary gas for plants to thrive, it is truly O2 that will keep the plants healthy. Get your roots more O2 and you will see the explosive growth you desire. Also, why are you using ZHO,
Azos and
Mykos? You are wasting money and putting in more cultures of the same species. Either use ZHO or the
Azos and
Mykos. Also make sure your root zone is at a good temperature, not too hot not too cold. Make sure you do not over water your plants, in fact allow some time for the coco to dry out a bit.
Also I am not a huge fan of rockwool, I don't believe it allows for the root growth that the producers claim it does. It also holds water and air at a very different ratio than the medium around it (in your case coco) which may cause problems. The difference in water and air holding capacities actually create a barrier that the plants roots will not want to cross until they have no other option. So if you are going to continue using coco drop the rockwool; or if you want to keep using rockwool drop the coco.
There is no magic ingredient or formula for plant health. If there was every hydro store and nursery would only sell that product. It is all in your understanding of how plants grow.