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Test for determining the potassium (K) content in freshwater aquariums in the range of 3-25mg / l. The content is enough to carry out about 50 tests.
Thanks to this test we will know the exact amount of potassium ions in water. This element is an activator of many enzymes and biological processes. Keeping potassium levels at an appropriate level also increases the bioavailability of other elements and minerals.