what are some products to keep my water quality stable and at breeding quality.

i am already going to use ada soil for my new tank's PH, and bamboo tunnles for my little guys
but what else should i buy to maintain gh/kh.

i have shikara micro organisms and nutrients.

what products do you use?
i am going to start this tank for higher grade shrimp like these ones, bc i already have A-S grade crs&cbs in a tank doing well.