A lot of times 20ppm works as long as it's consistent, a slightly dirty tank can make the sps brighten up, but I have so much macro in my system that mine stays around 5ppmNever a stupid question on Reef to Reef. Yeah you can just rinse it with RO water a lot of times I rinse it with tap water because carbon neutralizes chlorine anyway, I've never use this sulfur the method as a way to reduce nitrates keep me posted on how that works out I'm curious!
