Raising Calcium Level

[Streetlamp]

My calcium levels are low at 340ppm how much can I add to raise it back up? My tank is 130L

 

[Spare time]

Just raise it by no more than 50ppm a day (I think that is what bulk reef reccommends).

 

[dwest]

My calcium levels are low at 340ppm how much can I add to raise it back up?

I would first check alkalinity as well. If both are low, do a water change and start dosing 2 part or other balanced supplement. If only calcium is low, you can add calcium chloride. I would read instructions to increase about to 450 over the course of a week or so.

 

[Randy Holmes-Farley Verified Community Expert]

I’d boost calcium by about 25 ppm per day. The reason to go slow is not mostly because raising calcium is a concern, but that the additions may bring in impurities that aren’t best added all at once.

 

[Scrubber_steve]

My calcium levels are low at 340ppm how much can I add to raise it back up? My tank is 130L

Here's a calculator to help

Reef Chemistry Calculator

 

[Scrubber_steve]

The Many Methods for Supplementing Calcium and Alkalinity - REEFEDITION

There is no aspect of reef aquarium chemistry more important than calcium and alkalinity. Many of my previous articles have described various aspects of these systems in detail. In reading those articles, aquarists will note one pervasive theme: that maintaining appropriate levels of each are...

www.reef2reef.com

 

[Streetlamp]

Everything else is in order levels wise. I’ll go slow over the next week. Slow is always better in this game.