oxygen for pH

[DLuce510]

If low pH has been related tol low oxygen and high co2 has anyone experimented with dosing pure oxygen maybe through a bubble counter and injected through the skimmer? Just curious if this would work to elevate ph.

 

[redfishbluefish]

I could be wrong, but I don't believe increased oxygen is necessarily going to decrease CO2. If you have a CO2 problem, you have a CO2 problem! I'd also be concerned about the explosive nature of O2 and the fact that in higher concentrations, it's poisonous to life. Note that Randy has published two articles on ozone use in aquariums (O3), and maybe @Randy Holmes-Farley can add something this post.

 

[DLuce510]

I figured if it would work somebody probably would have done it, but a lot of people run air lines from out side to air stones, skimmers and co2 scrubbers with mix but positive results in raising oxygen levels.

 

[redfishbluefish]

Again, they are not raising oxygen levels, but lowering CO2 levels. If you have high CO2 in your house, sucking air from outside will help in lowering the CO2 in the tank.

 

[Randy Holmes-Farley Verified Community Expert]

That's correct, oxygen has no impact on pH. The only way adding O2 will impact pH is if you bubble so much through the tank that it tends to sweep out CO2 along with the O2 leaving the tank. That can work, but will boost O2 way too high (4-5X normal levels) and would be very expensive.