The well-being of aquarium and pond dwellers and the healthy growth of aquatic plants depend to a large extent on the pH level being kept as constant as possible. The pH level can also affect many substances dissolved in the water. Fluctuations in the pH level are definitely to be avoided.
JBL Online Laboratory
Regular control for a healthy aquarium/pond with conditions close to nature. Enter your water values into the JBL Online Laboratory and get an in-depth analysis of your values within seconds.
Recommended pH values:
Freshwater aquarium (community aquarium): 6.5-7.5
Lake Malawi/Lake Tanganyika aquarium: 7.8-9.2
Plant aquarium with few fish (aquascaping): 6.0-7.0
Marine aquarium: 7.9-8.5