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Hanna Instruments recently started selling a $50 colorimeter for measuring nitrates in saltwater aquariums: Hanna Instruments Link
Does anyone know a reason why this wouldn't work for testing our freshwater aquariums?
I understand this is a bit overkill, but I have always been interested in accurately tracking my tanks parameters over time. However, with the color charts having a degree of subjectivity, I've never bothered doing it.
Does anyone know a reason why this wouldn't work for testing our freshwater aquariums?
I understand this is a bit overkill, but I have always been interested in accurately tracking my tanks parameters over time. However, with the color charts having a degree of subjectivity, I've never bothered doing it.