I am currently trying both the Flora Nova Grow and Bloom on this grow. They just switched into flowering a couple weeks ago and have just started applying the Bloom once a week. So far so good. We five big 4 footers in Fox Farms soil under 2 600w HPS. I know there was a little nute burn problem with the Grow, but I think it was more the combo of FF soil and the nutes that did it. They seem to be a very good nute system and I had heard good things about them. But I can't be sure until the buds are done.