Raising Ca levels

[greenwolf52]

My Ca is at 300ppm. I know it should be around 400-450. right? can i boost this with a water change?

 

[paulcoates]

Originally Posted by greenwolf52
My Ca is at 300ppm. I know it should be around 400-450. right? can i boost this with a water change?

yes

 

[gwh57]

You can as long as the calcium level in your new saltwater is above 300 if not then you will need to add calcium in another manner.