Why bother? I know that pot growers like to blend and concoct but as I have said, mycelium are decomposers that make what they need from their substrate. The kelp, yeast and coconut flour will add very little support, the corn meal is mostly made of substances the mycelium will break down anyway. These organisms are not like plants, they do not need nutrition broken down for them in order for them to absorb them, quite the opposite, you want to excercise it, to force it to grow from raw, undigested material as they are primary and secondary decomposers. The best you can do really is to have the PH right and the moisture level at optimum.