Calcium mishap

[WhatCouldGoWrong71]

3 days ago I accidentally added 120ML to my dosing schedule. Previously I was dosing 180 ML into a 130G system. I also do kalk at night, about 2 Gs. My rules in my apex kicked in and shut everything down but my reading is 600. However, some odd stuff at play. I have dosed anything in 36 hours (calcium related) as my kalk won’t dose over 440 also. But, I’m getting questionable readings from my trident. In the last 18 hours every 6 hours - 600/598/648. What is also odd is my mag has gone up about 40 points to 1520. That doser has been off since @Randy Holmes-Farley sold me on the RMM. I ran a Salifert test and it’s >500.

My Alk is 8.4 and my PH holds between 8.45 and 8.5 all day/night. I also use sodium hydroxide and a CO2 recirc to keep PH elevated. I go through about 200 mill a day of ALK (Hydroxide <8.47/bicarb>8.46). Can I just let this come down naturally or am I going to have to do a really big water change? Corals look great…

 

[WhatCouldGoWrong71]

After a bunch of reading it looks like I’ll be doing about a 50% water change this evening when I get home.

 

[Randy Holmes-Farley Verified Community Expert]

600 ppm calcium is not a big concern. Just let it fall on its own.

 

[Randy Holmes-Farley Verified Community Expert]

After a bunch of reading it looks like I’ll be doing about a 50% water change this evening when I get home.

IMO, that’s neither warranted nor desirable.

 

[WhatCouldGoWrong71]

IMO, that’s neither warranted nor desirable.

Oh, I’m glad I posted that. I was wondering why people weren’t just simply letting it naturally fall on its own.