I use the cal so far it has been good.
So do you feel it's worth the investment at this point and time?
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I use the cal so far it has been good.
So do you feel it's worth the investment at this point and time?
They may be not my first go to test for Calcium which its not... I use salifert for calcium.Hanna tester for calcium is crap though. Those numbers really don't mean much especially when calcium tests usually require 2-3 different reagents and are accurate to +/- 20ppm

