How long should aquarium lights be left on?
How Long Should Aquarium Lights be Left On?Answer: The ideal ‘photo period’, or length of time the aquarium lights are on, ranges from eight to twelve hours, depending on the aquarium setup. Generally ten hours a day is a good average for most aquariums. Reducing the Time If algae is a problem in the tank, a contributing factor is usually too much light. Reducing the time the aquarium lights are on to eight hours, or a bit less if necessary, will help reduce the algae growth. Some fish prefer lower lighting conditions. Many cichlids thrive on less light, as do many species of the tetra family. If the room has good ambient lighting, it’s possible to reduce or even eliminate additional aquarium lighting. Increasing the Time If there are live plants in the aquarium, the aquarium lighting period should be increased. Plants require as much as twelve hours per day, however the time will depend on the aquarium setup and species of plants. Use a Timer The biggest obstacle in maintaining unifor
