Help... on PH

[ecam]

I got a salifert kit from Nicki (Thanks!!!!) The reading on it show that the PH is between 8.0 and 8.3


The 2 API kits I have are showing the PH at 7.4....

The Alk is about 161.1 or 9 dKh

I just calibrated my refractometer (thanks WIll and NIcki) and the salinity is at 35ppm (1.0264)

Not sure what to do about the PH. Should I throw out my APIs and trust the Salifert?

Thanks for the help​

 

[Young Frankenstein]

Go and get a pinpoint PH probe, its worth it. Calibrate it and you are good to go. API are not that bad, I have used both salifert and api. You have to follow the api directions to the letter and shake the chemicals very well before use. There is a waiting time also.

 

[ritter6788]

The API pH kit is impossible for me to read. It changes color to me depending on how you hold it. Sometimes it looks brown, sometimes purple, sometimes I can't tell which. I wouldn't stress at all over pH but make sure your salinity, Calcium, alkalkinity and Magnesium are in line and the pH will follow.

 

[Pappy]

Kits do go bad so that might be an issue too.