Hanna Salinity checker

TCK Corals
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Charlie’s Frags

Charlie’s Frags

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So today I bought the Hanna salinity checker and it 1.029. I also tested with my 2 calibrated refractometer and the measure 1.026. Which should I trust?
 
Top Shelf Aquatics
Never mind. It’s spot on with refractometers now. Apparently I didn’t calibrate the Hanna correctly the first time.
 
TCK Corals

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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  • Not yet, but I have one that I want to buy in mind!

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  • Other (please explain).

    Votes: 3 4.3%
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