The Planted Tank Forum - View Single Post - Is there freshwater tests for iron, magnesium, and calcium?
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post #1 of (permalink) Old 07-01-2012, 09:12 PM Thread Starter
psalm18.2
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Join Date: Oct 2010
Location: NH
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Is there freshwater tests for iron, magnesium, and calcium?

My plants are showing signs of iron deficiency and possibly calcium.

I have searched online and can't find freshwater calcium or magnesium tests.

There's a saltwater kit by Red Sea that has all 3 tests. I wrote to them to see if can be used on freshwater.

Anyone have ideas? I understand KH and GH can help make sure calcium and magnesium levels are good enough.

Multiple planted tanks 1.75g to 55g.
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