I used Scripps for years with sps and lps. Never had and issue even when it rained. I do a 10 gallon water change every week on a 90 gallon. Recently switched to using red sea pro in hopes of dosing less. So far use about half the 2-part i was using with Scripps, no insane growth or color change. Nothing wrong with Scripps just have to work a little harder to maintain your levels.