robocop
Aquarium Advice Activist
I have a Milwaukee PH/Alk tester that I used to measure my Alkalinity…..it read 9.6c but I don’t know what that means. How do I convert that into (1 meq/l = 2.8 dKH = 50 ppm CaCO3)? I read that recommended Alk is 3-4.5meq. Also, can that Cal Solution go bad? I've had it sitting for a while.