a) Yes, 3 parts coco and 1 part perlite. Or, if you do as Blister did, you can screen out all of the dust, and keep the large pith. It's a lot of waste, but I believe you'll be very happy with the result. In the case that you screen out the dust, no perlite required. However, perlite is substantially cheaper than coco coir, when purchased in volume - if you're not getting a big 4 cu ft bag from your local nursery, for around $22, you may want to shop around.ShowMeDaSauce said:I just expanded 1 brick to see how much it filled my container. It came up to around 60% full but i only used a little over 3 quarts of water to expand it. Directions said to use 1-1.5 gallons. I will probably take a trip Monday for one of the larger bricks and some perlite.
3 parts coco and 1 part perlite?
b) I don't follow directions, when it comes to coco coir. There is really no need to follow a specific instruction for the amount of water, because what most of them fail to tell you, is that you really want to rinse it thoroughly, and after that's done, pre-charge it with a calcium source. Again, I point you to either CNS17 Grow, DynaGro Foliage Pro, or homemade calcium acetate.