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Originally Posted by DanG
I ended picking up a salifert kit from the lfs.
Add the tank water, add 1 spoon of the powder, and add 1 drop from the syringe and swirl. Much easier than having to cap the test tube and shake every time. Result of the water test. 395ppm.
Not that bad IMO.
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If you have an approx idea of where your calcium's sitting at, you can add about 75% of the Salifert reagent in the syringe, all at once. Swirl 5 or so seconds to allow proper mixing and then continue adding drop by drop and swirling after each drop until the colour changes.
Much faster this way
~Tamara