so I have my 90gal jug of the stuff I got and I have used it alot in the past and never had any issues.
So I made up a batch lastnight for a water change today..so i decided WTF I am gonna test it. I made it to 36ppt cause my tank is at 34ppt now and wanted to bump it up a hair. I tested with my salifert kits alk and calcium
for alk I got 8.6dkh
calcium over 500.my salifert only test up to 500 and it was off the chart so I cant say exactly what it was..the alk I was pleased with the calcium was high but I guess its ok. I still need to get my hands on a magnesium kit