My test kits are all within date however, I was finding that my test kits and dosing requirements were not matching up to my ICP test results, so I decided to investigate further. I wasn’t expecting to be receiving a product/bottle with no instructions on how to use it together with no information regarding the calculation side of things.
Unfortunately, the Fauna Marin does not come with any colour reference card or instructions. The label on the MultiReference bottle does come with a list of reference values, but that's all. There is no colour reference card that comes with the MultiReference. I was struggling to find any information or videos on the internet explaining the steps involved.
What I’ve been able to work out so far is that there are two steps to using the MultiReference fluid, combined with ratios and calculations.
Eg: Test the Mg RedSeaPro test kit using the MultiReference solution - the result was 1240mg/L.
The correction factor on the MultiReference bottle is 1315mg/L.
Calculation required: 1315 / 1240 = 1.06
Test the Mg level of tank water with RedSea Pro Mg test. The result was 1320mg/L.
Calculation required: 1320 x 1.06 = 1399mg/L.
* 1399mg/L is the correct current Mg level in my tank, although the RedSeaPro test kit was stating it to be 1320mg/L.