Do Fish Tanks Need Sunlight?

Unlike plants, fish do not have a biological need for light, so they require less. Natural sunlight at noon has a rating of 5500 Kelvin. How long should I keep my aquarium lights on? To provide animals and plants the lighting they need, 10 to 12 hours a day is sufficient.

Can fish live without sunlight?

No, sunlight is not strictly necessary for most freshwater fish. Most do need some light to be able to see, find food and maintain a proper circadian rhythm. You can do this with most aquarium lights.

Should fish tanks be in sunlight?

Direct sunlight can lead to temperature fluctuations and algae growth in the tank, which can be harmful to the fish and other aquatic life. It's better to place the tank in a location with indirect or artificial light to maintain a stable environment for the fish.