Posts Tagged aquarium-chemistry-marine-water

Aquarium pH – What Is It? How Is It Controlled?

In a marine aquarium the pH measurement is of great importance. Marine aquarists routinely test their seawater pH level, but what is pH? It is not intended to go into great scientific detail but to give a general explanation of the term. For those who want to delve into the scientific world, I’m afraid you’ll have to look elsewhere. I’ll also give a little information on its control.

First of all, pH is a measurement of the acidity or alkalinity of our seawater. The measurements are set against a scale which runs from 0 to 14. The centre of the scale, 7, is neutral. 0 is acid and 14 is alkaline. Out of interest, Sulfuric acid measures 0, and Sodium hydroxide measures 14.

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Phosphate And How To Manage It

The salt water aquarist runs tests to ensure that the water quality in his/her aquarium is up to scratch. One of the tests should be phosphate, particularly in the case of a reef system.

Phosphate (PO4) is measurable in the sea and is a requirement of living organisms. It is present in a very small amount, 0.03 ppm (parts per million).

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