Hey reef folks
I have a 45g waterbox w/ sump. But I have the strangest thing always happen: the salinity of my system is constantly dropping. I am well aware that usually the salinity will increase due to evaporation and so my ATO has just RODI water, but any attempts at increasing my salinity are met with my system eventually dropping it to 30ppm (~1.022 sg) before I catch it again, and I'll do a water change. I'm measuring my salinity with a refractometer (yes I have calibration solution). I only have two fish, a wrasse and a black molly; and three hermit crabs. I also have some macroalgae and some coral: a euphyllia, a couple zoas, and gsp.
How is my salinity constatly dropping? Where is it going????
I have a 45g waterbox w/ sump. But I have the strangest thing always happen: the salinity of my system is constantly dropping. I am well aware that usually the salinity will increase due to evaporation and so my ATO has just RODI water, but any attempts at increasing my salinity are met with my system eventually dropping it to 30ppm (~1.022 sg) before I catch it again, and I'll do a water change. I'm measuring my salinity with a refractometer (yes I have calibration solution). I only have two fish, a wrasse and a black molly; and three hermit crabs. I also have some macroalgae and some coral: a euphyllia, a couple zoas, and gsp.
How is my salinity constatly dropping? Where is it going????