then consider the 3 measurements together, its the only way to know for sure. mg
should be around 1350 ppm
give or take (Thats nsw
level from what I have read) Not all salt mixes are created equal, so your salt mix may be your problem with the ca
levels if your changing water on a regular basis (one way to find out is to test a fresh mix). As for soda and all that, imho
, I would not do anything (Other than stop all dosing of anything) until you test mg
have this really nifty symbiotic relationship, so correcting the alk
levels without knowing the entire story is dangerous. Not like its all going to hades in a handbasket dangerous, but still, you should know what your correcting for and why.