You need to turn on the light when raising koi fish. For koi fish, proper illumination is of great help to its growth, and specific color illumination can also promote its hair color. It should be noted that no matter what kind of lamp, the irradiation time should not be too long, so as not to affect the rest of fish. In addition, if it is a germicidal lamp, it usually does not need to be turned on, otherwise it will destroy the ecological environment in the fish tank and destroy some harmful bacteria.
2. What are the fish tank lamps1. Fluorescent lamps: Fluorescent lamps are the most common fish tank lamps at present, which are generally white, blue and red. There are many kinds of it, but its functionality is limited, and it can only provide lighting. However, when it is put into grass tanks and seawater tanks, it can also provide photosynthesis for aquatic plants, which is beneficial to the release of oxygen.
2. Metal halogen lamp: Metal halogen lamp is a popular fish tank lamp before. Its advantages are strong light penetration and good color rendering effect. Because its light is close to sunlight, it will release ultraviolet rays, which can sterilize and protect the health of fish. This kind of lamp is not versatile, so it is used less.
3, LED lamp: LED lamp is the mainstream choice at present, and it has a good prospect. The biggest difference between it and the previous fish tank lamp is that it belongs to the cold light source, so it will not change the water temperature, thus reducing the stimulation to fish. But it is also expensive, so it is not popular.