The pH value indicates how acidic or alkaline your aquarium or pond water is. Increasing the pH value by 1.0, for example from 7.0 to 8.0, means a tenfold increase in the bases (opposite of acids) in the water, so a regular check is important! Here we’ll show you how to carry out the water test correctly. This test determines the pH range of 7.4-9.0 very accurately
You can find out about the effects of the pH value and more about water values in the Themeworld under: Параметры воды .
Details about the pH test in the range 7.4 to 9.0 can be found on the product page under: JBL PROAQUATEST pH 7.4-9.0 Test