how to use api calcium test

for every drop that u put in there it is 20ppm cal, u keep going until it goes from pink to blue one drop at a time.
 
it isn't that good... Ever since i bought API calcium test kit it have jynxed my tank and calcium never goes above 380... Must be made by gypsies.
 
10 drops first bottle, shake, 1 drop at at time from second bottle, (although personally I do the first 15 together, as my cal is consistantly at 400 to 420)

The first drop that turns it blue is where you stop adding/counting (it wont turn any more blue if you keep adding)

Multiply times 5
 
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