Why is my Mag 1700+? Not dosing it

[jayteerq]

Using Tropic Marin Pro Reef Salt which comes at 1350 Mag. I am dosing 50mL per day of AFR and 1000mL per day of Kalkwasser. What can be causing my Magnesium to rise so high? Is this bad? Should I do a WC?

 

[Randy Holmes-Farley]

Probably test error, either mag or salinity. The AFR did not do it.

Just say NO to magnesium testing: RMM is born

OK, this thread has been many years in the making, and I'm posting it here since folks in the chem forum are probably already tired of all the threads relating to problematic magnesium testing. I'm going to propose a method, let's call it the Randy Magnesium Method, or RMM for short. All good...

www.reef2reef.com

 

[jayteerq]

Probably test error, either mag or salinity. The AFR did not do it.

Just say NO to magnesium testing: RMM is born

OK, this thread has been many years in the making, and I'm posting it here since folks in the chem forum are probably already tired of all the threads relating to problematic magnesium testing. I'm going to propose a method, let's call it the Randy Magnesium Method, or RMM for short. All good...

www.reef2reef.com

When I check with my Hanna's, it's always in the same proximity.

 

[Lavey29]

You. Need to verify salinity and water changes don't do hardly anything to lower magnesium.

 

[jayteerq]

You. Need to verify salinity and water changes don't do hardly anything to lower magnesium.

Salinity verified... 1.026

 

[Randy Holmes-Farley]

Both are verified by things that might be inaccurate. If both are accurate, the only other possibility is that the salt mix is way off, which is less likely.

 

[Lavey29]

Salinity verified... 1.026

Did you take a sample to your LFS to confirm your test? What do you use for checking salinity?

 

[jayteerq]

Did you take a sample to your LFS to confirm your test? What do you use for checking salinity?

I use Hannah checker, and I just recalibrated it with their solution

 

[BryanM]

If things in the tank look good, I'd just get a 2nd opinion from an LFS.

 

[Randy Holmes-Farley]

If things in the tank look good, I'd just get a 2nd opinion from an LFS.

Measuring the new salt water is another possible step.

 

[AKReefing]

It's a Trident? Does the test solution show different results if it runs low, or does the test solution settle?

 

[Lavey29]

I use Hannah checker, and I just recalibrated it with their solution

So you need a second opinion test from your LFS.