A little powdered DE mixed into the coco is great for killing any critters & gives you the added silica for plant strength & frostynessLoose bags of coco make me nervous. No personal experience but I've heard stories of things like root aphids and other bugs being introduced into grows via loose coco such as canna...
get the cyco, you wont be disappointed
im sure if you get both, youll run w/ the cyco
Another vote for the Botanicaire 5g bricks.
I haven't ever tested the runoff, but after expanding it with water and a not so decent flush with 1.2 EC, 5.8 ph feed, I've never had any problems. As somebody mentioned about it earlier, it's real fluffy and doesn't compact...exactly what I look for in coco.
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