I read about this in an article from the other forum. I take it you have to be more careful with the type of salt you use since most salts have alk, cal, and mag levels optimized for SPG of 1.026 or even less? Also which salt are you using?
As temperature increases, the space between water molecules increasesalso known as density, which therefore decreases. If the temperature of water decreases its density increases, but only to a point. ... Evaporation increases salinity and density while the addition of freshwater decreases salinity and density.