Ammonia slowly climbing?

[PRock]

Okay, I'm done with this Seneye thing. I shutdown my computer to install some new hardware, moved the USB port the Seneye is plugged into, rebooted the computer and my PH tanked?!?

21/6/2020 1:27 PM	7.69
21/6/2020 1:21 PM	7.69
21/6/2020 12:37 PM	8.03
21/6/2020 12:07 PM	8.04
21/6/2020 11:37 AM	8.03
21/6/2020 11:07 AM	8.03
21/6/2020 10:37 AM	8.02
21/6/2020 10:07 AM	8.02
21/6/2020 9:37 AM	8.02
21/6/2020 9:07 AM	8.01
21/6/2020 8:37 AM	8.01
21/6/2020 8:07 AM	8

 

[taricha]

It was out of the water for oh, about 30 seconds as I re-routed the cables. I have ammonia again! By the next reading it was showing ammonia, and it went over the alarm value of 0.05 ppm within an hour and a half and has staid there pretty much ever since. So I'm going to go out on a limb here and say that according to the Seneye, Air = Ammonia.

Re seated the slide under water - guess when!

If the seneye is using an optical sensor to measure a color change in a chip (seems likely) then small air bubbles could totally change the apparent measurements.
If so, that's a pretty annoying implementation - air bubbles causing a false high ammonia alert.

 

[brandon429]

These two threads should meet
***a seneye that held in the hundredths, and I thought it was neat they mentioned natural levels in the thousandths ppm vs hundredths or tenths

https://www.reef2reef.com/threads/h...for-nh3-how-impactful-is-4ppb-nitrite.332479/