Setting up my sump to get live rock going soon. Read a few times that it is not ideal to change salts. I am looking to get feedback to help in my decision. I am setting up a FOWLR tank so not as concered about finicky corals just yet but my second tank may be a reef. Thus keeping that in mind as I would want to want use same salt mix setup for water for changes, etc. What do you use and why?