Aquatic plants, reeds, duckweed, algae and other aquatic plants are closely related to the survival activities of fish. Under sunlight during the day, aquatic plants release oxygen through photosynthesis, which is needed by fish, while absorbing carbon dioxide in the water; photosynthesis stops at night, and a large amount of oxygen in the water is absorbed and carbon dioxide is released. This means that fish cannot do without aquatic plants, and aquatic plants will deprive some of the oxygen necessary for fish to survive. We can often see fish floating heads in ponds with dense aquatic plants before dawn after the summer begins. After the sun comes out, this situation gradually decreases. This is the fact that aquatic plants absorb oxygen in the water at night, causing the entire pond to lack oxygen. Caused.
Aquatic plants themselves are fodder that fish like to eat. At the same time, there are many insects and moths around it. It is also a delicacy for fish. Water plants and other aquatic plants are also "natural breeding beds for fish." 'At the same time, it is also a "safe haven" for fish; cold weather is here to keep warm, hot weather is here, "When you are disturbed or attacked to enjoy the coolness, hide here as a cover. In addition, aquatic plants also have the function of regulating water temperature. The temperature difference between day and night is relatively large. Smaller, suitable for the needs of fish.
In short, fish are inseparable from aquatic plants and have an "indissoluble bond" with them.