Hopefully this is a quickie.
Getting to the end of my Fritz RPM (blue box). Been open about 4 months. Latest batch mixed to 4.5 alkalinity by Salifert and Red Sea, 1.026 sg by calibrated refractometer. Yes I mixed the box when I got it.
Before I switch brands, did I do anything wrong? Is Fritz still having quality control issues?
Getting to the end of my Fritz RPM (blue box). Been open about 4 months. Latest batch mixed to 4.5 alkalinity by Salifert and Red Sea, 1.026 sg by calibrated refractometer. Yes I mixed the box when I got it.
Before I switch brands, did I do anything wrong? Is Fritz still having quality control issues?