Quick Answer: Should I Turn Off Aquarium Light At Night?

Can I leave my aquarium light on 24 7?

Tank lighting should be left on for no more than 12 hours per day.

All fish require periods of darkness, similar to their natural aquatic environments.

Leaving your tank light on 24/7 will result in the overgrowth of algae and possibly harm the fish..

Is it better to leave Aquarium light on or off?

For lights it is best to leave them off, because leaving them on all of the time may promote algae growth in your tank. … Put your aquarium lights on a timer and you no longer have to remember to turn them on or off.

How long should you keep the light on in a fish tank?

10 to 12 hoursHow 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. Installing a timer or purchasing a unit with integrated timing can make lighting easier––just set it and forget it. Keep in mind algae loves light as well.

Why do my fish go crazy when I turn the light off?

The reason why they do that is because the light from the tank instantly goes off so they it shocks them really bad so you should have a night on in your tank it won’t startle them as much and your fish wont have that seizure like thing.

Is blue light good for fish at night?

Nocturnal fish particularly prefer dim blue lighting at night. The blue lights not only mimic moonlight and, thus, encourage more physical activity, but these also provide them with illumination. There’s also the fact that blue light allows you, their human parent, to view them well.

Can a fish tank light be too bright?

Too much light will encourage the algae to grow on and kill the plants as well as the glass which prevents viewing of your fish. Never leave the lights on 24 hours at a time.