Does the light in the fish tank need to be on 24 hours a day?

It is recommended not to turn on the lights 24 hours a day at most, because the lights will cause the plants and algae in the fish tank to grow rapidly, and the fish will not be able to eat them. Soon you will find that there are too many algae, which is very harmful to the fish. It will reduce the living space, not very good-looking, and affect viewing. If there are fish that are fine, it is recommended to install special lights at night.

Extended information:

Key points in the management of domestic ornamental fish

When raising ornamental fish, different measures need to be taken in different seasons. For different seasons throughout the year, How to manage ornamental fish?

1. In spring, the focus of management is appropriate feeding and disease prevention and treatment. When the weather gets warmer in spring, ornamental fish after overwintering become active, but their bodies are relatively weak, so the amount of bait should be gradually increased. Due to major climate changes, special attention should be paid to thermal insulation when it is windy or rainy. Bacteria and viruses also reproduce rapidly in spring, and fish diseases are most likely to become prevalent. Fishing with a net can easily damage the fish body, so you must pay attention to disease prevention and treatment.

2. Summer: This period is the peak growth season for ornamental fish. The water temperature is usually above 30℃, and fish rarely get sick. If the bait is sufficient and the water is changed frequently, its growth will be better than in other seasons. The demand for oxygen increases, and preventing water body hypoxia has become the key to feeding. Reduce the stocking density, change water and sewage frequently, and pay attention to oxygenation, especially in hot and heavy weather. Pay attention to heatstroke prevention and cooling, and use bamboo curtains to cover 1/3 to 1/2 of the water surface to prevent "tail scalding" accidents.

3. In autumn, the management focus is to feed enough. Appropriately increase the proportion of nutrients such as fat and protein in the bait. In late autumn, when the weather gets cooler, feeding should be gradually reduced. At the same time, gill rot, white spot disease, skin mold, etc. are prone to outbreaks, so fish diseases need to be prevented.

4. In winter, the management focus is on cold protection and heat preservation, and appropriate feeding. Greenhouses or aquariums use heating equipment so that the water temperature is generally not lower than 20°C. Or use the waste water from the factory to maintain appropriate water temperature for normal breeding and reproduction. It is strictly forbidden for fish to become sick or die from frostbite if the water temperature drops suddenly (especially at night).

Reference material: Baidu Encyclopedia? "Ornamental Fish"