Adding Nutrients To CocoCoir (First time using coco)

So I wanted to start my seedlings off in coco coir since thats the only thing i have handy at the moment (from my mushroom bulk grow) but I also have a bunch of dry organic fertilizers that i could use like seabird guano, lime, phosphorus, etc. Could i mix it with the coir to feed my seedlings enough till transplant?

yoooo

I remember reading something about this in AskEd's CoCo guide. It's on another forum but I figured it is so close to what you need you should see it. Do a Google search for AskEd's Coco Guide and search for this sentence "Coco is organic, and works awesome with organic grows. Currently I use a homemade organic mix that gets me from seed to mid-flower only using water."

Great link @KryptoBud thanks