Question: I was wondering where you purchase coconut coir and if you can provide me with a explanation of how to use it properly? Thanks. Love the site!!!
Answer: I actually purchase nearly all my growing "ingredients" off Amazon.com for prices and convenience (two-day free shipping!).
I've been using coco coir bricks as a base and mixing in about 30% horticultural perlite.
Honestly though, any coco coir based "soilless growing mix" from the hydroponic store will also do the trick.
I actually made a short guide to growing a few plants with coco coir, and it'll walk you through the whole thing!