Airstone Areation

RDGzero6 · May 2, 2018

is it possible for salinity to rise while using an air stone in a DT? Trying to figure out why my salinity went up from 1.024 to 1.025 in a week with ATO. My DT is a 10 gal nuvo10 so I don’t have room for parameter swings. Thanks.

Randy Holmes-Farley · May 2, 2018

If the water level is truly unchanged, salinity can only rise by adding salts.

That said, the change you see could be within the testing accuracy of your device.

RDGzero6 · May 2, 2018

Ok awesome I’d double check my salinity again on my Milwaukee.

RDGzero6 · May 2, 2018

Ok this might the answer. I just remembered this. I did a water change before this past Sunday 10% my salinity before was the water change was 1.024 and when I refilled the water my new water was at 1.026. But from Monday & Tuesday it was 1.024 and today it jumped to 1.025.

Could that be the reason? Hopefully I made sense here lol

Randy Holmes-Farley · May 2, 2018

RDGzero6 said:
Ok this might the answer. I just remembered this. I did a water change before this past Sunday 10% my salinity before was the water change was 1.024 and when I refilled the water my new water was at 1.026. But from Monday & Tuesday it was 1.024 and today it jumped to 1.025.

Could that be the reason? Hopefully I made sense here lol

If you are using the Milwaukee MA887 Digital Salinity Refractometer, then it only claims accuracy to +/- 2 ppt (PSU), which makes your two measurements (1.024 = 32 ppt and 1.025 = 33 ppt) equivalent. :)