Magnesium dropping

[lawise]

Randy, everything seems good in my tank but magnesium is dropping rapidly what's up

 

[Randy Holmes-Farley Verified Community Expert]

Real magnesium depletion is 1/10th of the calcium drop, or less. Max of 1-2 ppm per day.

Anything else is test error, or due to water changes with a low magnesium mix.

 

[lawise]

Real magnesium depletion is 1/10th of the calcium drop, or less. Max of 1-2 ppm per day.

Anything else is test error, or due to water changes with a low magnesium mix.

My calcium is staying the same and I haven't done a water change before the drops and using the Red Sea Pro magnesium test

 

[lawise]

My calcium is staying the same and I haven't done a water change before the drops and using the Red Sea Pro magnesium test

Please help!

 

[Randy Holmes-Farley Verified Community Expert]

Then it can only be test error, and lots of people have issues with the Red Sea magnesium kit.

I'd suggest just not measuring it. It is exactly what is in your salt mix if calcium is unchanging and you are not dosing either.