Life Expectancy of A Betta Fish | Aquascape Addiction

Life Expectancy of A Betta Fish

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We answer the common aquarium question of what is the expectancy of a Betta Fish? the factors involved and most importantly what you can do to increase the life span.

Life Expectancy of A Betta Fish

The Betta fish is hands down one of the prettiest fish that you could ever have in an aquarium, not to mention that they are pretty easy to take care of as well. When it comes to owning fish, or any kind of pet for that matter, it is also good to know how long we can expect them to live, which is why we are here today to discuss the life expectancy of a Betta fish and some tips on how to increase it’s life span.

The Average Life Of A Betta Fish

Typically speaking, the average lifespan of a healthy Betta fish is around 2 – 3 years. However, if you take really good care of your Betta fish, you might get lucky, and it will survive for 4 or even 5 years.

There have even been some very rare instances where a select few Betta fish make it to 7, 8, 9, or even 10 years of age. With the right knowledge and proper care you can expect a Betta fish to live for around 4 years no problem, but that does require some pretty intensive care to achieve.

What Affects A Betta Fish’s Health – The Usual Causes Of Death

One of the biggest factors that will determine the lifespan of your Betta fish is the quality of the water. The water needs to have the proper temperature as well as pH level in order to stay healthy. For instance, water that is too cold your Betta fish may stop eating and will become malnourished, plus water that is too cold also makes them more susceptible to developing disease.

Another important factor which determines the lifespan of your Betta fish is what kind of diet they have. The proper diet can indeed add several great years of life to your Betta fish.

Moreover, there are many things that can cause death and disease in you Betta fish, with one of the biggest factors being husbandry. When fish are not bred and raised properly, especially if the handler is unnatentive or the water is dirty, the Betta fish may start to develop diseases at a young age.

When breeders keep the Betta fish in dirty water while breeding them, a long list of diseased can occur, and this includes popeye, a disease that makes their eyes bulge and will quickly cause death. Moreover, some breeders may be inattentive and breed fish with genetic defects.

Don’t get it wrong, there are some things that you simply cannot control, but that being said, there are still many things that you can do which are in your control, things that will increase the lifespan of your Betta fish quite drastically.

How To Increase The Lifespan Of Your Betta Fish

There are indeed a few different things that you can do to help increase the lifespan of your Betta fish, so here they are. One thing to keep in mind is that a male Betta fish will not live quite as long as a female, usually a few months less.

The Food

One important aspect of a healthy Betta fish is the food that you feed them. Sure, a Betta fish can survive on generic Betta food, which come in the form of flakes or pellets. However these fish do like their meat, real live meat, so a good idea to keep them as healthy as possible is to feed them live foods such as brine shrimp, daphnia, blood worms, and other small creatures.

Keep in mind that you should never over or under feed your Betta fish. For instance, if you are using pellets, a few in the morning and a few at night will do just fine.

The Tank

Another important factor in keeping your Betta fish alive for as long as possible is the tank you have them in. Betta fish can survive in something like a goldfish bowl, but it really is not ideal.

Betta fish have sensitive fins and too much banging into the glass of a small bowl or tank can damage them, cause infection, and ultimately death. With these fish it is better to get a slightly larger tank. One Betta fish should have a tank of at least 5 gallons in size.

Here is more information on Betta Tanks.

The Water

Another way to help keep your Betta fish alive for longer is by making sure that they live in good quality water. First and foremost, you need to change 15 percent of the water every week at a bare minimum (we have covered a good how to guide here), with a higher percentage of water changed being better. Moreover, Betta fish do not like cold water, and therefore the water temperature in your Betta tank should be between 75 and 79 degrees Fahrenheit.

If the water is too cold you might want to invest in a small fish tank heater. Keep in mind that if you have a very small tank, using a heater may not be wise as they can make the water too hot really fast. Moreover, the pH level in your Betta tank should be an even 7.0 or even slightly acidic. (If you need to lower your pH level, then this post will help).

Other Tips To Increase Betta Fish Life Span

To really help your Betta fish live for as long as possible, you should also invest in a state of the art filtration system, a sump with organic matter, a water heater, a UV sterilizer, and a good pH checking system.

These are all tools that fish owners use to ensure that the tank water stays clean and clear, and that the fish stay alive for as long as possible. On a side note, if you want your Betta fish to survive, always bring them to a vet or pet shop if you notice anything out of the ordinary.

You might also like this post on why Betta Fish make bubble nests.


As you can see, taking care of your Betta fish really is not all that hard. As long as you follow all of your tips you should have no problem keeping your Betta fish alive for at least 3 years, and probably longer. You never know, some Betta fish, in rare occasions, have been known to live up to 10 years old.