If you want to raise healthy and beautiful fish, you need "good water", so how to judge the good water quality? What kind of water quality changes may affect the healthy growth of ornamental fish?

First, how to define water?

"Good water" with clean water quality is clear, transparent and elastic. Unlike ordinary pure water, it does not contain any other substances, and there can be no foam, protein worms, oil films, algae and bacteria.

Second, good water should be watery.

Better water can't be completely pure and transparent, which means that the water is too thin and should be colored with water. Oxygen water is to cultivate microorganisms and nitrifying bacteria that are conducive to maintaining water quality.

Third, good water color judgment.

The appearance of water color is determined by the number and species of plankton in the water, among which the most important species are algae, such as green algae, gymnosperms, cryptoalgae and diatoms. Good water color should be very light oil green, yellow green, dark brown and so on.

Fourth, good water has no taste.

In addition to observing the water quality with the naked eye, there is another way to judge it with your own nose. Good water should be tasteless or fishy. When I just stink, it means that the water quality has been destroyed.