Look up Cutting edge solutions Sour dee. It smells great. I'm going yo start that this run. I went to my hydro store looking to buy a sweetener, either flora nectar grape or bud candy. The guy showed me them then he said, "what are you growing" being in Texas, I told him tomatoes. He knew what was up. He said for a sweeter puff, use this, also has other elements that help. He sold me on it. I smelled all and that one just hit me. I had a discussion with a guy here, he said both do kind of the same thing. I'm a taste guy, so to me, bud candy didn't past the sweetener test out of the 3. Flora grape smelled better than bud candy. I want to use bud candy though at one point, because I do have advanced nute products. Maybe if I get it cheaply. Get other opinions though, but I promise you, that smell of sour apple will have you dreaming about it.