What do you trust more, Hanna Salinity Checker or a Refractometer

[H&A Aquatics]

Just like the title says, what do you trust more for an accurate reading.
I have a Hanna Checker and a refractometer that are giving me completely different answers on a salinity level and making me a little curious on everyone’s experience with these.
I run everything at the shop on a .25-.26 off the Hanna checker, I get home and check my at home tank and Hanna showing a .21 yet my refractometer is showing .26
Now I’m stuck between the fact is my shop tanks (which is everything is doing great with noticeable growth on corals) at .30 or is my tank at home .05 to low.
I’m gonna look into some hardcore lab test, recalibrate my Hanna tomorrow and recheck then if results still show the same I’m gonna see if I can find a lab test to actually give me the real number.

 

[jessesoto33]

Refractometer


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[DEWreefing]

I use a refractometer and check every week. Apex salinity probe is finicky even after recalibration. Most people don't realize refractometer calibration fluid is set at 68 deg. I actually calibrated my apex probe off my refractometer. Ph spike was from me turning lights down coral started to photosynthesis better.

 

[Tommy Ngo]

Vee Gee refractometer

 

[CoralNerd]

Vee Gee refractometer

Sounds like our recent conversation and you reminding me to breakout the refractometer[/QUOTE
Ali kept telling me your salinity is high. The Vee Gee indicated the Hanna checker salinity was too high of salinity. This is after the Hanna was calibrated.

 

[Tommy Ngo]

Sounds like our recent conversation and you reminding me to breakout the refractometer[/QUOTE
Ali kept telling me your salinity is high. The Vee Gee indicated the Hanna checker salinity was too high of salinity. This is after the Hanna was calibrated.

Ali must mistaken me for someone else.

 

[drexel]

A trusted refractometer designed for seawater (VeeGee, DD Ocean, etc) and an old school glass hydrometer.

 

[madatom]

Ali’s refractometer. But too cheap to buy that one so I have the Hanna checker and get it calibrated by Ali.

Was troubleshooting LPS recession and polyp bailout and Ali’s first thought was high salinity. Got it down and things been good ever since.


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