Old Reviews Cocotek nute questions

[flynfish]

Hey guys I am germing some auto seeds now. I will be growing in coco for the first time and had some questions. I do have the gh flora series now, but have been looking at the cocotek nutes. I will have to buy more anyway so should I go ahead and get the cocotek? Also looking online there are a+b parts. Are there two parts for bloom as well. Thanks for any help. Just don't want to waste money if I don't need to. Oh will be growing with led lights in smartpots if that helps. Thanks