I have stored it for over a month and do not see any issues. To me salt water is salt water as long as salinity does not change due to evaporation. However, I do not have any corals that are super picky as I am mainly a fish guy. I do have a few sps, lots of lps and some soft corals and bubble tip anemones. I have nothing to back this up, but I think storing NSW is easier than storing the artificial stuff long term. I only say this because I believe the real stuff is more stable.How long do you normally store it for? Have you ever stored it for more than a few days with good results or do you use it pretty quickly?
