I was curious if there were any recommendations for accurate meters/testers to test water quality.
I am thinking TDS, PH, Amonia, Nitrate, Nitrite, maybe other tests?
I am thinking over time it would be less expensive to buy electronic metering than replacing test kits as the kits expire (rather the tablets and re-agents expire).
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TDS - Any of the cheap $10-$20 stick meters are "good enough" for aquarium use.
pH - Pinpoint
Never tried tools for testing the other stuff.