Hanna Calcium checker

[mike007]

Everytime i test my calcium with this tester it shows something different. Comparing with Redsea test it shows my calcium level is about 175 ppm more. Has anyone had this problem?

 

[Sicklid]

Check it out maybe the one you have could be on the recall list!!

 

[Tab28]

Isn't this the checker that requires absolute zero ro water?


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[Damon]

Yes it is. Use the Hanna water that they produce. Saves a ton of headaches!

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