High Magnesium levels

[Dami2205]

Hi I'm retaking the hobby after forced leave due to wife heath but now life is good and back on the tank business again, just cycle my tank (3 weeks since cycle) I did perform a 30gal water change since nitrates did not rouse for more than 20ppm (after cycle I thou some Cheato on the sump to do the trick and Lower them nitrate)

Current level as of last night:

Nitrate. 12.1 (previous 10.8 this is due to heavy feeding trying to raise Phosphate above zero)
Phosphate 0.00 (I would like to be at 0.01 or between 0.03)
Calcium 459 (previous 467)
DKH 9.5 (previous 10.2) I was doing kalkwasser on ATO but now I'm dosing via Kamoer DP 25ml per day 1ml ever hour
MAGNESIUM 1800!!! Previous 1470 I thought it was a human error due to test kit use but a got a Hanna Checker (fall this params) and its even higher!!! should I worry what can I do to Lower them if need be.
Salinity 1.026 stable ATO tunze 3155
PH. 8.2 (previos 8.0)
TEMP 78 controlled over Inkbird

currently 5 small fish, system is Red Sea 350xl 65gal with 15gal sump total volume 80gal using reef crystals (going to change to read sea coral pro due to mix is very dusty in the water) for LPS 1 head torch and 1 frogspawn the rest are some softies (just trying to get the hang of it again)

I haven't perform any water changes (after cycle since I'm trying to build some nutrients in the water and params are ok.

Filtration 2 filter socks, buble magus curve 5 skimmer, carbon reactor and cheato in sump that is it. going slow on light schedule 5hours a day with 2 AI prime 16hd

should I worry abut Magnesium?? overall I feel proud of my self since I not ding THAT bad after 8 year of inactivity.

 

[KrisReef]

Yes, and no.

Where/how are you adding Mg in the past? The level is high and should be lower but it can come down naturally over time if you stop adding it (are you using a high Mg salt?)

 

[Eagle_Steve]

Hi I'm retaking the hobby after forced leave due to wife heath but now life is good and back on the tank business again, just cycle my tank (3 weeks since cycle) I did perform a 30gal water change since nitrates did not rouse for more than 20ppm (after cycle I thou some Cheato on the sump to do the trick and Lower them nitrate)

Current level as of last night:

Nitrate. 12.1 (previous 10.8 this is due to heavy feeding trying to raise Phosphate above zero)
Phosphate 0.00 (I would like to be at 0.01 or between 0.03)
Calcium 459 (previous 467)
DKH 9.5 (previous 10.2) I was doing kalkwasser on ATO but now I'm dosing via Kamoer DP 25ml per day 1ml ever hour
MAGNESIUM 1800!!! Previous 1470 I thought it was a human error due to test kit use but a got a Hanna Checker (fall this params) and its even higher!!! should I worry what can I do to Lower them if need be.
Salinity 1.026 stable ATO tunze 3155
PH. 8.2 (previos 8.0)
TEMP 78 controlled over Inkbird

currently 5 small fish, system is Red Sea 350xl 65gal with 15gal sump total volume 80gal using reef crystals (going to change to read sea coral pro due to mix is very dusty in the water) for LPS 1 head torch and 1 frogspawn the rest are some softies (just trying to get the hang of it again)

I haven't perform any water changes (after cycle since I'm trying to build some nutrients in the water and params are ok.

Filtration 2 filter socks, buble magus curve 5 skimmer, carbon reactor and cheato in sump that is it. going slow on light schedule 5hours a day with 2 AI prime 16hd

should I worry abut Magnesium?? overall I feel proud of my self since I not ding THAT bad after 8 year of inactivity.

Be careful relying on the hanna for mag. It appears there may be issues with it reading high.

I think the thread is currently on the main page under the vendor section. Might want to look into it, as if you are not dosing, then I doubt it is that high. 1470 I could see, as IORC does mix out a little high on mag at 1.026 (your calcium also follows what IORC mixes at when mixed to 1.026)

 

[Dami2205]

Not adding Mg only Calcium and Alk via Kalwasser May be the salt mix is reef crystals

 

[Randy Holmes-Farley Verified Community Expert]

A tank at 3 weeks since cycling will have magnesium matching the new salt water, and 1800 ppm is much more likely a test error than a bad batch of salt.

Personally, I’d ignore it for now and focus on other things.

 

[Dami2205]

A tank at 3 weeks since cycling will have magnesium matching the new salt water, and 1800 ppm is much more likely a test error than a bad batch of salt.

Personally, I’d ignore it for now and focus on other things.

Thank you All!!

 

[Hanna Instruments]

Hello from Hanna Instruments,

I am on the aquarium team, here to address the Magnesium Checker issue.

I am posting this same message on various threads regarding the Magnesium Checker so that as many people as possible get the information.

First, here is an FAQ with answers:

1) What happened?
As many of you know, Hanna Instruments prides itself in accuracy. We do extensive R&D before releasing products – what happened with the Magnesium Checker was a unique combination of unexpected factors. Our manufacturing facility is in Romania, and shipments from Eastern Europe were delayed in the Spring due to events in that area. With this, the initial batch of Magnesium products were in cargo storage for longer than anticipated. While the cargo containers sat for extended periods in the Spring, the temperature in the containers increased. This resulted in longer than usual exposure to higher than usual temperatures, which in turn caused one of the reagents to expire early. The products passed R&D inspection on site, and we’ve never had them degrade in transit before, which is why we were surprised about the issue at first. And why we are grateful that users like yourselves reported it!

2) What did Hanna do to fix the products?
The issue was one reagent expiring early during extended high-temperature exposure in the cargo containers. To fix this, we were able to greatly improve the temperature stability of this reagent by reformulating it from a liquid to a powder. This means that Reagent B is now a powder for this product. Our other Checkers have a timer built in for the dissolution of the powder reagent, so we added that to the new Magnesium Checkers too. That is the only difference in devices, but because of that, we are sending everyone who purchased the initial version a new Checker with the timer built in!

3) Why has it taken so long?
Resolving this issue took several steps. First we had to reformulate Reagent B into a powder. Then we had to add the timer into the production process for the Checkers. Once those updates were made, we had to repackage all the previously produced items with the updated ones. And of course, we had to figure out the logistics of replacing these items both for customers such as yourselves, and bulk purchasers like LFSs and major websites. We also found new transport options to avoid extended international shipping delays in the future.

4) How is Hanna going to make this right for the people who already purchased?
We will send everyone who fills out this form: HI783 Marine Checker Reagent Issue Form free replacements for whatever Magnesium items (Checker and/or Extra Reagent Packages) were purchased. Please fill out all fields!

5) How do I know if I am in queue for the replacements after submitting the above form?
I receive all the form submissions. My apologies that there is not a confirmation, but once you hit submit I do receive it. We are on track to have all current form submissions fulfilled by the end of October, and new submissions as soon as possible thereafter.

Please see our official customer letter below for more details:

These Magnesium items will be available again from your LFS and online sources soon.
Thank you for your patience as we have resolved this issue!


All the Best,
Hanna Instruments