Sharon Engst wrote in message
...
I need a brand name and source for an effective PO4
measuring kit....I would appreciate suggestions of kits
that are accurate and cheaper than my La Motte NO3 kit.

A lot of us find the Sera kits to be quite serviceable. I tried one based on
Tom Barr's recommendations to the APD and found it earned that reputation...


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-Y-

Nestor 10

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