I've used coir for several years--it was Boca Bob that got me started using it. I grow almost exclusively in containers, mostly Earthboxes and Smartpots. I tried the coir by itself, but just didn't get great results. After some trial and error, I've settled on a mix of coir, Pro-Mix and some horticultural grade perlite. Makes a nice, loose container mix.
I also am very fussy about my coir. From now on, will only use the Coco-tek brand. Tried another brand one year, and it apparently was still way too saline. Even after flushing it many times, my plants would just not grow. As soon as I got rid of it (actually bagged it and put it in the trash), I went back to the Coco-tek and all was well.
Glad to see this discussion revived!
