I been using Canna Brick Coco Coir for a year now too. Switched from the loose bags like Canna Nutrifield Royal Gold Botanicare readygro etc. Much much cheaper and the same quality. Wet each brick (4 in a package) with one gallon of decent 0.2 to 0.4 EC tap water. If its not...make it that way with reverse osmosis and/or a calmag product. Ph down to 6.0. Remeber...one gallon per brick...warm water. Fluff to taste..transplant...feed in with Canna A&B at 2 tsp od each part. A little Rhizotonic or some other root stimulator and grow away. Simple.