Refractometer Calibration Liquid Possibly Faulty

[radar_17]

Try Accurasea by twolittlefishes...

This is what I use as well. Was using RODI but since going to this have found that the RODI caused a .02-.03 ppm error. Corals look better after switching to the Accurasea (and then slowly adjusting my salinity as a result) so I think it works.

 

[Ken Williams]

How often should you calibrate your refractometer?

 

[cginter]

How often should you calibrate your refractometer?

Every time you do a water change. Better to be safe than sorry

 

[jason2459]

That would be 155 times a day for me. [emoji1]

 

[cginter]

That would be 155 times a day for me. [emoji1]

You running and automatic water changer? [emoji35].

 

[jason2459]

You running and automatic water changer? [emoji35].

Yes, spectrapure controlled. I've always been about making water changes ease.

 

[cginter]

Yes, spectrapure controlled. I've always been about making water changes ease.

Wish I could wrap my head around the automatic wc. I'd be in heaven.

 

[Valkyrie]

While I was at work I had to look into this whole waiting before reading and found why we don't. The ATC refractometers only react up to 85F. I'm testing urine and when it comes out of the animal it's well over 85F so waiting has no value. I did 3 urinalysis today and tested this out, there was no change in my readings. So although temperature affects a salinity reading, it doesn't affect specific gravity. I also got to do at least one total protein reading on blood serum and waiting did not affect the result then either. At least now I understand and will change my method for testing salinity. Thanks!

 

[jason2459]

Nice. Thanks for the update.