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Oceanlife: Phosphates TEST KIT are ICP-OES CALIBRATED

Phosphates promote the proliferation of brown algae in the tissue of corals, masking the natural color pigments of the corals and causing the coral to turn brown. It also restricts the calcium carbonate uptake necessary to enable the coral skeleton to grow.

If the value is even higher, it will result in coral bleaching causing death to corals.

Recommended concentration should be below 0.03 ppm.

Phosphate test (PO4) for sea and fresh water. The double color scale allows two tests, one for low concentrations and one for high concentrations.