Do Betta Fish Need Light? – Should They Be (ON at Night)

It’s a question that has no simple answer: do betta fish need light? The truth is that, like most things in life, the answer depends on individual circumstances.

In this post, we’ll take a closer look at whether or not bettas need light and what factors you should consider when deciding if your Betta needs light (or darkness).

We’ll also share tips on creating an appropriate environment for your fish. So, read on to learn more about whether or not bettas need light!

Can Betta Fish See in the Dark?

Betta Fish can see in the dark, but they have limited vision. They can see movement and some colors but cannot see as well as other fish with a better sense of sight.

Bettas rely on their sense of smell and touch more than sight, so they don’t need much light to navigate their environment.

Do Betta Fish Need Light at Night?

Do betta fish need a light at night? The short answer is no. Betta Fish do not need light at night, but they may benefit from a low-intensity light source in their aquarium, as this can help create an environment conducive to restful sleep.

How big do betta fish get

low-intensity LED aquarium light may be the best option if you are looking for a light for your Betta’s tank. This light will provide an ambient glow in your aquarium without disrupting your Betta’s day/night cycle.

How Much Light Does a Betta Fish Need? (betta fish light requirements)

How much light do betta fish need? Betta don’t like artificial or natural light too much and need around 14 – 16 hours of light per day.

This can be achieved by leaving a light on for 14 hours, then turning it off for 2 hours, or leaving it on for 16 hours straight.

It’s essential to ensure that your Betta’s tank doesn’t get too bright, as this can harm their eyes.

When choosing a light for your betta tank, look for one with adjustable levels to set it to the correct intensity.

Do Betta Fish Need Light During the Day?

Does a betta fish need a light? Betta Fish do need light during the day to stay healthy and active. The light should be bright enough to simulate a natural environment but not so bright that it causes stress or discomfort.

A good rule of thumb is to keep the light on for 10-12 hours daily. This will give your Betta plenty of time to explore, algae blooms, feed, and interact with its environment.

Why Do Betta Fish Need Light?

Bettas, like all other living creatures, need light to thrive. Light provides the energy necessary for photosynthesis, which is how live plants and algae growth produce oxygen. In the absence of light, Bettas will eventually die.

It’s essential to provide a large enough tank for your Betta so that he has plenty of places to hide from the light if he wants to.

You should also make sure that the tank is in a place where it receives lots of natural sunlight or artificial light. If you’re using artificial light, ensure it provides at least 10 watts per gallon of water.

What Kind of Light Do Betta Fish Need?

The type of light you choose for your betta tank will depend on the size of your aquarium and the type of plants you have.

Betta Fish need light that provides heat and UV radiation. A regular incandescent bulb will not work, as it does not provide UV light. fluorescent bulbs or LED aquarium light is best.

Make sure the light you choose has a built-in timer, as all wild Betta types need a day/night cycle as we do.

Can Betta Fish Live Without Light?

Bettas can live without light, but they will not be as healthy.

Bettas need a certain level of light to photosynthesize. This is why it’s essential to keep them in an area where they will receive some natural light or at least have access to a good LED light.

If you can’t provide your Betta with enough light, you’ll need to supplement their diet with good quality fish food containing all the nutrients they need.

Should I Keep My Betta Fish Tank Light ON at Night?

It’s okay to keep the light off at night. For example, Bettas only need a little light, but they should be in a bright enough aquarium to see and explore their environment during the day.

If you want to provide your Betta with a night light, a low-intensity LED betta fish light will work. This betta tank light provides an ambient glow without disrupting your Betta’s day/night cycle.

Are Betta Fish okay in the Dark?

Bettas are acceptable in the Dark. This is because they come from rice paddies in Southeast Asia, where they live in very low-light conditions.

They are Labyrinth Fish, which means they have an extra organ called the labyrinth organ that allows them to breathe air directly from the surface.

This is why you will often see Bettas “surfacing” for a gulp of air at the top of their tanks.

What Color Light Do Betta Fish Like?

Betta Fish in wild don’t have a preference for any particular color of light. As long as the light is bright enough and provides adequate heat and UV radiation, your Betta will be just fine.

Many hobbyists use white or blue LED aquarium lights with several different color settings. 

How to Create an Appropriate Environment for Your Betta Fish?

Betta fish are some of the most popular in the world, but many people need to learn how to take care of your bettas properly

Many people think that because Bettas are small and easy to take care of, they don’t need much attention. This isn’t true! If you want your Betta to be happy and healthy, you must create an appropriate environment.

This video will teach you the top 10 tips to make your fish happy. By following these tips, you can create a healthy and comfortable home for your Betta that they will love!

Do Betta Fish Need Sunlight?

Betta Fish do not need sunlight, but they do need some light source. This could be natural or artificial light, such as a fluorescent bulb or an LED aquarium light.

The amount of light your Betta needs will depend on the size of your tank and the type of plants you have in it; A good rule of thumb is to provide at least 10 watts per gallon of water for your aquarium light.

Do Betta Fish Need Light to Survive?

Yes, fish species need light to survive. Without adequate light, they will not be able to photosynthesize, and they will not be able to access the nutrients they need from their food.

This monocular vision betta fish also need light to see, as they rely on vision to hunt and explore their environment. In addition, they use light to regulate their circadian rhythm, which helps them stay healthy and active.

Therefore, providing your Betta with the right light is essential for its well-being!

Do Bettas Like Light or Dark?

Bettas do best when kept in a well-lit environment. Therefore, a sunny spot near a window is ideal. Bettas Fish prefer light environments, as they need to be able to see and explore their environment.

However, they should not be exposed to direct sunlight, which can be too intense and damage their eyes. The best lighting for bettas is a dim but natural-looking light, such as a LED aquarium light.

This will enable them to see and explore while avoiding direct sunlight and preventing their eyes from becoming damaged or irritated.

Do Betta Fish Like Light at Night?

Does betta fish need light at night? Betta Fish do not need light at night, as they naturally become inactive when it’s dark. However, some hobbyists like to provide a dim light in the betta tank at night so they can observe their Fish.

Betta Fishes like the light at night because it cues them when it’s time to wake up and start swimming around. They generally prefer a dark environment to sleep in, though.

Commonly Asked Questions About Do Bettas Need light (FAQ)

Do Betta Fish Need Light All the Time?

Do betta fish need a tank light? No, bettas do not need light all the time. However, they need at least 14-16 hours of light per day and then an hour of darkness to rest and sleep.

Can I Leave the Light on 24/7 for My Betta?

do bettas need light 24/7? It is recommended to leave the light on for your Betta only during the day and night. Betta Fish need a period of darkness to rest and sleep, so it’s best to turn the light off for at least 8-10 hours every night.

Do Betta Fish Need Colorful Lights?

No, betta fish do not need colored lights. Instead, they prefer a more natural-looking light, such as a white LED aquarium light. This will give them the light they need without being too bright or overwhelming.

Do Betta Fish Like Bright Lights?

No, bettas do not like bright tank lights. They prefer dim, natural-looking aquarium lighting. Too much artificial light can be overwhelming and even damaging to their eyes.

How Many Hours of Light Do Betta Fish Need?

How many hours of light for betta fish? Betta Fish need at least 14-16 hours of light per day. This can be achieved by leaving a light on for 14 hours, then turning it off for 2 hours, or leaving it on for 16 hours straight.

Do Betta Fish Need a Heater?

Yes, betta fish need a heater to maintain a stable water temperature. Bettas prefer temperatures between 76-80°F (24-27°C). A heater will help keep the water at a consistent temperature, which is vital for their health and development.

Do Betta Fish Need a Filter?

Yes, betta fish need a filter to keep their water clean and oxygenated. A good aquarium filter will help remove waste, toxins, and debris from the water while providing oxygen. This will help keep your betta fish healthy and active.

Do Betta Fish Like Blue Light?

Yes, betta fish do like blue light. Blue light is calming and relaxing to bettas and can help reduce stress levels in the betta tank. It’s best to use dim blue LED light bulbs with sense movement in the betta aquarium, as this will provide enough light without being too bright or overwhelming.

What Do Betta Fish Need?

Betta Fish needs a clean, well-maintained tank with a heater to regulate water temperature, a filter to keep the water oxygenated, and a dim but natural-looking light.
They also need a variety of tiny holes, hiding places, and enrichment items, such as plants and rocks, to explore and play with.
Additionally, they need a high-quality diet of pellets or frozen foods to ensure their nutritional needs are being met.

Do Betta Fish Need Led Light?

Yes, betta fish need LED aquarium lighting. LED lights are best for bettas as they provide a dim, natural-looking light that won’t overwhelm or damage their eyes. Additionally, LED aquarium lights are energy-efficient and can last for many years.

Do Fighter Fish Need Light?

Yes, fighter fish (betta fish) need light. Betta Fish require at least 14-16 hours of light per day and then a period of darkness to rest and stop eating. Therefore, a dim, natural-looking light, such as a white LED aquarium, is best for fighter fish.

Do Betta Fish Need a Lid?

Yes, betta fish need a lid on their tank. A glass aquarium lid will help prevent water from evaporating and maintain the tank’s temperature, as well as keep your Betta safe from any predators lurking around the tank. Additionally, if you use a heater in the tank, it’s best to have a lid to help keep the heat in.

Do betta fish need light 24/7?

do bettas need light 24/7? No, betta fish don’t need light 24/7. In fact, too much light can be stressful for them. They benefit from a regular day/night cycle, just like us humans!

Can I leave my betta fish light at night?

Do you turn betta fish light off at night? No, keep your betta fish light off at night! They need a regular day/night cycle for sleep and stress reduction. Too much light can be harmful. Aim for 8-12 hours of light daily and complete darkness at night. Sweet dreams for your fishy friend!

Do bettas like blue light at night?

Bettas prefer a darker environment at night. Blue light can disturb their natural resting period. It’s recommended to use a gentle, warm light or keep the tank in darkness during the night.


So, do betta fish need light? In summary, there is a wide range of opinions on whether betta fish need light. However, the main points to consider are that bettas are naturally found in murky waters and do not require too much light to thrive. If you choose to provide light for your betta fish, ensure it is not too bright and does not produce heat. Heating lamps can be harmful to bettas and should be avoided.

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About Me

I am the founder of, a devoted wife and mother, and an avid fish enthusiast. My aim is to assist fellow fish lovers worldwide in understanding how to properly care for and breed their pet fish.

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