remineralizer

Okay, I got my ro water unit a few days ago and have some questions. Is there an all-in-one type product that will remineralize to a good Gh and Kh for a planted aquarium? I've heard that some people mix their own minerals/elements/ferts together the get the Gh and Kh to the desired degree...

I use SS GH+, but I saw this for the first time today and was wondering if anybody from here is using this to remineralize their RO. Would this be good for tiger and neo water? Any thoughts?? Thanks