No idea. I have no issue with the Phosphates kit - I used it today, and got a
reading of 0.

Marc


Mort wrote:

Regarding the Ca test, you add a drop at a time, until the color changes
(shaking after each drop). If the color starts to turn from dark blue to
purple-pinkish after 20 seconds, add one more drop, and then take that
reading
off the syringe.

Marc

Thanks Marc, I understand that part but what I was wondering is if there was
a brand of test kit for Phosphates that uses the same method as Salifert's
Calcium test kit.

Any ideas?

TAIA

~Mort

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