I wasn't sure which forum to put this in, but this seemed like the best choice. Anyway I've been using Canna Coco A + B, and now the time has come that I need some PK 13/14, but it's ridiculously expensive here (around 70 bucks for a litre), as I live out of the US. I found another place that sells Plagron PK 13/14, and I'm wondering if anyone has any experience with it, as it's almost half the price. They also offer a coco A + B product, so I want to know if I can use that too once I need more. Any input would be greatly appreciated, as I have to use it soon (I'm halfway through the fourth week of flowering) Peace!