Best Magnesium test kit?

lrhorer

New member
I have been using the Red Sea Reef Foundation Magnesium test kit, and I find it a bit finicky and tricky to use. In all honesty, I have never been all that great at titration. I am wondering if there is an easier or more sensitive Magnesium test kit out there. What are the experiences of the folks here?
 
I started out and continue to use Salifert. Very easy. Hardest part is getting a level scoop of the powder. Once you figure that part out, cake. Takes all of 5 minutes.

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Honestly all hobby level test kits in the market are not accurate at all but salifert seems to be the easiest one.
 
I use Salifert for all of my testing as well. Although most of them are fairly tolerant of slight testing inconsistencies, the Mg test really needs to be done exactly how the instructions state.

after adding 5 drops of mg1, swirl for 30 seconds. then add 1 spoon of mg2, swirl for 10 seconds. when adding mg3, with the other tests you can get away with adding about 1/2 a syringe then drop at a time until color change. For the Mg test, I get the most consistent results adding one drop at a time from the beginning until color change.

I use the stopwatch on my phone to time my "swirls".

Using this method I can get very reliable, repeatable results. Like mentioned above, the test kits will not give you laboratory level precision, but they will be consistent and that is really what you need to be concerned with IMO.
 
I use Salifert for all of my testing as well. Although most of them are fairly tolerant of slight testing inconsistencies, the Mg test really needs to be done exactly how the instructions state.

after adding 5 drops of mg1, swirl for 30 seconds. then add 1 spoon of mg2, swirl for 10 seconds. when adding mg3, with the other tests you can get away with adding about 1/2 a syringe then drop at a time until color change. For the Mg test, I get the most consistent results adding one drop at a time from the beginning until color change.

I use the stopwatch on my phone to time my "swirls".

Using this method I can get very reliable, repeatable results. Like mentioned above, the test kits will not give you laboratory level precision, but they will be consistent and that is really what you need to be concerned with IMO.

Salifert has changed the directions on their test. "Add 5 drops Mg-1
Add one spoon of Mg-2 pwder to test vial and swirl for 10 seconds."
Always check directions when obtaining a new test kit. Directions sometimes change.
 
Thanks, everyone. I picked up a Salifert Mg test kit, and it is essentially the same as the Red Sea kit, except that the Red Sea kit is a bit fancier with a titrator that is sort of cool. The only other difference is the part B reagent is a powder in the Salifert kit and a pre-mixed solution in the Red Sea kit. The Red Sea kit is quite a bit more expensive, but the refill is about the same cost.
 
You can use the tritrator syringe to level the powder before filling.
OR just keep something in the kit to do it, like a stiff plastic card.
 
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