Why does the aquarium need lighting?

Why does the aquarium need lighting? Let's first understand the effect of light source on the organisms in the fish tank.
In short, the light in the aquarium is simulated sunlight. It can be understood as the influence of sunlight on most organisms. Therefore, in general, our aquarium needs artificial light. Proper artificial light source can not only ensure the health of ornamental fish in the aquarium, but also effectively prevent the growth of algae in the aquarium. In addition, the lights in the aquarium can also increase the ornamental value of the aquarium. Looking at the fish swimming in the water and dancing under the light of the light makes people feel more beautiful.
Sunlight can promote the growth of fish, and water plants need photosynthesis to make them grow better. For living organisms, stimulating fish and shrimp with effective light source can promote the rapid color of fish and shrimp, increase the performance of fish and shrimp, and improve the ornamental quality of fish tank. In the case of sufficient natural light, artificial light is not necessary. However, for most aquarium enthusiasts, our aquariums are generally placed in places with insufficient light, so most of the time, we need artificial lighting. We should also pay attention that the lights in the aquarium cannot be kept on for a long time. Turning on the lights for a long time will affect the biological clock, not only their health, but also their body color.
Generally, the lighting time should not exceed 12 hours a day, and 6-8 hours can completely meet the biological light, and maintain the appropriate lighting time, so as to ensure the body color performance of the ornamental fish. For aquarium enthusiasts who raise ordinary ornamental fish, choosing ordinary lamps and lighting with warm white lights can basically meet the needs of ornamental fish in the aquarium. After all, most fish are exposed to white light in nature, which can reflect the natural color of fish to the greatest extent. In fact, the choice of aquarium lighting mainly depends on the species of ornamental fish we raise and our own needs. For example, the red parrotfish and Luohan fish are more suitable for using red light, which will have obvious color enhancement effect under the illumination of red light. For cichlid snappers with strong metallic color in the three lakes, the light they need is cold white or blue, which can not only promote the metallic color of the fish, but also create the deep feeling of imitating the sea tank. The conclusion is that whether it is an ordinary fish tank or a grass tank, the aquarium lamp is essential. As for the selection of lamps and lanterns, only follow the principle that conforms to the biological characteristics of your own aquarium.