Ph air pump?

[GinoGino]

Can you use an air pump to increase the ph in your reef, if so how would you do it? Thanks a lot! I have a line from my skimmer to the outside

 

[motortrendz]

You can use it with a simple air stone in the sump. But make sure it's not drawing air from the stand, they to get outside air if possible. You could just run your skimmer air Inlet outside or atleast outside the stand. Thay will hhelp raise ph.