Magnesium reduction easy way??

[Blake7393]

Hi all, im struggling with high magnesium. Anyone know of an easier way to reduce it without all the water changes?
Cheers Blake

 

[Randy Holmes-Farley Verified Community Expert]

What is it? Magnesium never just rises on its own. Unless you overdosed, you are probably struggling with bad testing not excessive magnesium.

Fir many people, magnesium testing is not worthwhile and I recommend just not doing it.

Do this instead:

https://www.reef2reef.com/threads/just-say-no-to-magnesium-testing-rmm-is-born.1017528/

 

[Blake7393]

My Parameters are
No3 20ppm
Calcium 425
Salinity 1.026
Magnesium 1650
Kh 8

 

[Blake7393]

I'm losing a torch coral at the moment that's the only reason I've tested the magnesium level cause my other parameters are the same as usual

 

[Randy Holmes-Farley Verified Community Expert]

Unless you added massive amounts, that value is test error. Don’t just accept test kit results.

That said, if it is high, only water changes can lower it.

Try that test on new salt water.

 

[Ironfish]

Unless you added massive amounts, that value is test error. Don’t just accept test kit results.

That said, if it is high, only water changes can lower it.

Try that test on new salt water.

I'm dealing with the same problem. Not that high but it's been on a trend up for a month even with water changes.
250gal tank with 40gal water changes every 10 days.

Today i got Trident 1425 and hanna 1480.
Everything else in range.

I dose Kalkwasser + All for Reef + Alkalinity (to compensate for an Alk trend down in this tank)

Any thoughts?

Thanks!

 

[Randy Holmes-Farley Verified Community Expert]

I'm dealing with the same problem. Not that high but it's been on a trend up for a month even with water changes.
250gal tank with 40gal water changes every 10 days.

Today i got Trident 1425 and hanna 1480.
Everything else in range.

I dose Kalkwasser + All for Reef + Alkalinity (to compensate for an Alk trend down in this tank)

Any thoughts?

Thanks!

Sounds like test error. Magnesium cannot ever rise on its own. Either salinity is rising, you are adding it, or it is test error. I do not recommend that most folks even test magnesium since testing is often inaccurate and it is easily managed without testing.

This has more:
https://www.reef2reef.com/threads/just-say-no-to-magnesium-testing-rmm-is-born.1017528/