I've used floraduo for about a year now and have had no complaints. I use it in rockwool as well as coco, just use the nutrient chart and adjust as needed to keep your plants happy. I like to keep things pretty simple, A and B,
silica blast, florablend, floralisious plus,kool bloom and a little cal mag. I've tried just about every nute line over the years and i've always come back to GH. IMO every line has it's pluses and minuses, genetics have always made the biggest difference in the end. So don't be affraid to try it I promise it will do the job. Good growing!!