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test kit color charts

C

Carlo

For what it's worth with the phosphate test if you get any color change at ALL you have to much phosphates in the tank. The thing with phosphates is that the levels in a way are unimportant because their are organisms in the tank using much of it as fast as it's being produced. So even if you test at a solid 1 ppm you could really be at 5 ppm (yes I used extremely high numbers in the example).

Safe to say any color change is to much on the phosphates.

The API calcium doesn't use a color chart. Fill to 5ml line on vial then add 10 drops of reagent 1, then add one drop at a time of reagent 2 until you get a solid color change. Each drop is 20 ppm calcium. So 5 drops= 100 ppm, 10 drops = 200 ppm, 15 drops = 300 ppm, 20 drops = 400 ppm etc.

Carlo
 
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