Alkalinity Dosing Question

[Randy Holmes-Farley Verified Community Expert]

Alkalinity demand rises as the alk rises. So it takes more every day to maintain 11 dKH compared to 9 dKH. That’s one reason the water changes won’t drive it up to 11 if you keep dosing the exact same amount that maintains 9 dKH. [emoji3]

 

[EastEndReefer]

Thanks for taking the time to reply, got me a little curious so I wanted to ask.

 

[Randy Holmes-Farley Verified Community Expert]

You’re welcome.

Happy Reefing!

 

[Mike Reef Addict]

I just tested my fresh batch of RC and calcium was 500ppm Salifert an alkalinity was 9°Dkh API

 

[Randy Holmes-Farley Verified Community Expert]

I just tested my fresh batch of RC and calcium was 500ppm Salifert an alkalinity was 9°Dkh API

What salinity? That seems lower on alk than mott people get at 35 ppt.

 

[Mike Reef Addict]

What salinity? That seems lower on alk than mott people get at 35 ppt.

My bad Randy that was the first thing I checked .025 which is 35ppt I believe.

 

[Mike Reef Addict]

That may have been human error I just tested again an I got 11° Dkh