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- Apr 19, 2019
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So I did my weekly alkalinity test on my 20 gallon tank. Last reading it was 7.5dkh but today when I measured it was 15dkh!!!!! Immediately I started to prepare fresh salt water and double checked my reading on the hannah checker.... this time it read 7.7dkh.
When I looked at the Cuvette that read 15dkh there was a ton of thick slimey percipitate. Does hannah alk fluid expire within 3 months of opening?
When I looked at the Cuvette that read 15dkh there was a ton of thick slimey percipitate. Does hannah alk fluid expire within 3 months of opening?