So i finally decided to make my own water. For the past 1.5years i went to my LFS to get my saltwater but i got sick of going everyweek. I got myself a refractometer and i plan on making my own water. I have mostly sps (frags to mini colonies) what are some salts that are great for sps dominated tanks and what are some tips for making my own water and doing the water changes? (I do have an RO/DI unit from BRS.)