Knottydread
Member
Does having my air stone on while I take readings effect the outcome. Or should I turn it off to check the readings.
Lol ya I went and tested it my self. I just wasn't sure if the dissolved oxygen has an effect on ppm but I guess its more of the water moving around. Thanks!It does if you measure in a very bubbly area yes, it won't give a steady reading if that's the case. You can obviously test it easily yourself, just turn it off and measure and compare to value with airpump on.