Reef salt parameters off

[Hind]

pH issues can come from the extra CO2 that is created after making RO/DI water...that's why they say mix the water for 24 hours to exhaust the CO2 and balance the waters o2 content.

Im not saying that is the issue with your water or questioning how you make water but it could be a cause of low pH. I make water and agitate the water with a pump and inject air for 24 hours before I add the salt. My tank pH has never dropped from a water change.

Im more wondering why my parameters are so off with this batch. I know from the last go around with this issue AF said they will QA the salt to prevent this from happening...did they?

My RO supply is in my garage which should be outside air, so running an airstone within that container shouldn't really make a difference...?? I also have been running an airstone from outside air into my reef tank which has helped increase my ph by displacing my in-home co2 levels. I have also fine tuned my system to maintain dkh8, but yesterday 2 days after my water change with AF PB it was dkh7. I should have tested the salt mix after I made it to see really whats in there..... I'm new to this company so I'll keep trying, but I might be going back to my trusty ESV soon....

 

[2dawghouse]

My RO supply is in my garage which should be outside air, so running an airstone within that container shouldn't really make a difference...?? I also have been running an airstone from outside air into my reef tank which has helped increase my ph by displacing my in-home co2 levels. I have also fine tuned my system to maintain dkh8, but yesterday 2 days after my water change with AF PB it was dkh7. I should have tested the salt mix after I made it to see really whats in there..... I'm new to this company so I'll keep trying, but I might be going back to my trusty ESV soon....

If you are bringing in that much outside O2, then you shouldn't have any pH issues, you are right about that. I just tested another 5 gallons to see if the parameters have changed any from scoop to scoop and nope, my dkh was still 6.1 on the mark.

 

[Hind]

If you are bringing in that much outside O2, then you shouldn't have any pH issues, you are right about that. I just tested another 5 gallons to see if the parameters have changed any from scoop to scoop and nope, my dkh was still 6.1 on the mark.

That seems lower than it should be, I think I read AF wants a slightly lower dkh for the proliferation of the probiotic fauna. Should I decrease my sodiumCarbonate dosing? I use auto dosing pumps and can titrate to anything, I was targeting dkh8 prior to using AF. Even with using NACarbonate dosing and pumping outside air, still seem to struggle with keeping my ph above 8.0. thats why I'm concerned, this salt is pushing my ph in the wrong direction.