Apex salinity probe

[Mast33]

Hey all I just set my apex up and have my probes in. I calibrated the probe and everything. At time of setup salinity was 27 ppt. I got my hanna checker and it read 32. Well now 4 hrs later apex says 23 ppt. Hanna still says 32. What's going on with apex probes? Why so off and why going down

 

[SuncrestReef]

The most common cause is air bubbles trapped in the probe. Try fully submerging the probe, then tip it upside down under water and tap it gently. You'll probably see some air escape.

 

[Mast33]

The most common cause is air bubbles trapped in the probe. Try fully submerging the probe, then tip it upside down under water and tap it gently. You'll probably see some air escape.

You rock!!!! I just tried that and it worked. Thank you so much

 

[reefz]

Like @SuncrestReef said, air bubbles can cause the probe to give false readings. Also if when you put the probe in the calibration solution it might of read wrong becuase of the air trapped inside. You have calibrate the probe at an angle and shake it so the air can escape.

 

[SuncrestReef]

You rock!!!! I just tried that and it worked. Thank you so much

Excellent! Glad it helped.

Since you're new to the Apex, be sure to check out my whole series of Apex tutorials so you can get the most out of your setup:
https://www.reef2reef.com/ams/authors/suncrestreef.93940/

 

[randyadammartin]

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[Delloman]

Get an sps kit for it best addin to an apex should be in the box when you get an apex.
https://www.saltwateraquarium.com/s...ZPniJ3vElp_EitW2I4D1vJThp8NfppOhoCsxcQAvD_BwE

 

[jphilip813]

The most common cause is air bubbles trapped in the probe. Try fully submerging the probe, then tip it upside down under water and tap it gently. You'll probably see some air escape.

i just tried that and the probe/readings stabilized....