? Will duckweed compete with fish for oxygen. Unlike ordinary aquatic plants or algae, this plant floats on the surface of the water and its roots are in the water, so it consumes oxygen in the water during respiration, while the oxygen produced by photosynthesis is released into the air, so it can not play the role of oxygenation. Therefore, if there is duckweed in the fish tank, the number of duckweed must be strictly controlled and oxygenated regularly.
of duckweed? 1. Light control: Because duckweed grows on the surface of the water, its first benefit is to control the light. Although fish need light to grow, the time of light exposure can not be too long, and exposure to the sun will lead to an increase in water temperature. If the temperature changes too much, it will be harmful to the health of fish.
2. Absorb ammonia nitrogen: Duckweed, like other aquatic plants, can absorb ammonia nitrogen in water, thus preventing fish from being poisoned and providing nutrition for themselves. It is worth mentioning that when ammonia nitrogen is absorbed, it can also inhibit the growth of algae, which can effectively prevent algae explosion.
3. As food: Some herbivorous and omnivorous fish can eat duckweed as food, which can also supplement certain nutrition, and at the same time, it can control its quantity and avoid excessive growth affecting water quality.
