Question on Bubbles in Res tank. Effect PH and PPM reading

I have 3 air stones in my res tank and I have a Hanna Grocheck PH and PPM meter. Does having bubbles in the water mess up the readings of the PH meter or PPM. I would not think so. my friend has some in his tank and his plants are fine. Just making sure. Thanks

If the bubbles are directly under the probes, than it most certainly will mess up the reading. I have a Ph and TDS pen, and if I move them over the bubble column, it throws my readings off (especially TDS). However, as long as the probe is not directly over the air bubbles, then it won't make a difference.