Welcome, and to add to what Jason said, if you do a search here on Nature 2, you will likely find hundreds of threads and I doubt you will find a single positive thing about them for general pool use from an experienced user. These "Mineral" systems like Nature 2, and the Frog systems add copper and/or silver to the water which can help to control algae, but does almost nothing to help with bacteria and viruses which you can't see, they also tend to lead to staining on pool surfaces and green hair for people with naturally blond hair. So at best they provide a false sense of security by limiting some algae growth, and at worst you are asking for staining and water problems.
p.s. if you can post more details about your pool we can give better advice, also we love photos