Sulphur reactor and high Ca

[Dexter_SA]

I need some assistance please. Ever since i started my sulphur reactor my nitrates came down perfectly. But it seems like it created another problem. To me it looks like my calcium crept up to about 500ppm or there about. Now my issue comes in with the alk. Alk is dropping by .7ppm a day. I have been dosing Randy Holmes 2 part. And has been working well but i want to move over to calcium reactor. What will be my best options to handle the scenario. If i start with cal reactor will my calcium rise even more?

 

[ReeferBud]

check out this thread: https://www.reef2reef.com/threads/new-sulfur-denitrator-working-great.316251/post-6250658

In the last couple of posts, I discussed what I learned about the Alk consumption of a sulphur denitrator and how to adjust dosing to prevent a Ca and Alk imbalance developing over time.

 

[Dexter_SA]

awsome....thanks for the link....if i understand it correctly....it looks like i just need to hang onto the cal reactor for a bit. Just untill my ca is also starting to drop?

 

[ReeferBud]

Just dose less Ca for a few days until it drops to the level you want.

 

[Dexter_SA]

The thing is i dont dose any calcium. Since i started the Sulphur reactor the calcium crept up on its own to about 500ppm. Seems like its been stable there now for a while. Think i must add more sps so it can come down.

 

[Randy Holmes-Farley]

awsome....thanks for the link....if i understand it correctly....it looks like i just need to hang onto the cal reactor for a bit. Just untill my ca is also starting to drop?

No, you need to dose alk and not calcium. It's a drawback of sulfur denitrators since they consume alkalinity.

 

[Dexter_SA]

Thanks Randy. I started my doser with your two part alk.

 

[Randy Holmes-Farley]

You're welcome.

Happy Reefing.