How Long Do Clownfish Live? + Tips for Longer Lifespan

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It’s a smart move to research the level of commitment your new anemone fish requires.

Clownfish Family. by thesaltyscientist

It’s time you learn how long clownfish live on average, and what’s their potential lifespan. It’s established that Clownfish species are longevous enough to reach 20 years of age or more, both in the wild and in captivity.

However, there are a few caveats when it comes to extending the life expectancy of these fish in a home aquarium.

But what should you do to provide your new pet clownfish with long and fulfilling life?

How long do Clownfish live with good care on average?

Before we move on to the answer I need to make sure you know the difference between a lifespan and life expectancy:

Lifespan refers to the maximum number of years a fish can live, whereas life expectancy is how long they are expected to live on average.

Also, it should be taken into account that in the wild, clownfish take care of themselves.

However, in captivity, their quality of life is entirely in the hands of their owner.

Luckily, there’s a wealth of literature and advice from experienced fish keepers which have contributed to mastering the care of this fish species.

That being said here’s how long you can expect a clownfish to live:

how long do clownfish live header

Upon good husbandry, a captive clownfish can enjoy upwards of 20 years of life in a home aquarium. On average, in a fish tank they live between 3 to 6, and sometimes 10 years but since some reach upwards of 20 years, the average is probably the result of suboptimal care. Careless practices such as picking the wrong tank mates and not providing a healthy diet can contribute to a shortened lifespan among domesticated clownfish breeds.

Conversely, it’s a common misunderstanding that, on average, a clownfish is SUPPOSED to live around 6 years.

This number is heavily contradicted by scientific research and the multiple reports of experienced fish keepers.

The shorter estimations are very likely the result of human error.

Author’s note: It’s hard to say if there’s a relationship between life expectancy and whether the fish comes from the Ocean or not. That’s because captive-bred specimens were not popular back when most of the 20+ years old clownfish were obtained for home aquarium care.

Their popularity exploded exponentially with the release of the movie Finding Nemo where the main character is a clownfish.

What clownfish species have the longest lifespan?

percula clownfish

by Takaki1980

There are 10 different types of clownfish that are popular in the aquarium hobby. And that’s not even counting the designer breeds.

However, the known anemone fish species extend their numbers beyond 30.

Let me share with you some of the scientific studies I’ve found while researching the lifespan of different clownfish species:

According to one research paper, the expected lifespan of a wild Clownfish is estimated to be no less than 30 years. The researchers studied a population of Percula clownfish and have found this species to be way more longevious than anticipated.

Such life expectancy is 6 times greater than that of fish with similar sizes and 2 times greater than other species of damselfish suitable for coral reef aquariums. Moreover, I kept digging and found another study suggesting that other small species like the Ocellaris and the Cinnamon clownfish also have a lifespan of over 20 years.

Finally, I visited some of the reputable online communities for saltwater fish keeping and confirmed my findings. It turned out that many marine fish keepers would have their clownfish live upwards of 15 years.

Some of these aquarists even boast 30-year-old specimens.

The oldest captive clownfish was 41 years old, as reported by its owner Dudley Hartz.

Similar reports can be found about the Maroon, the Skunk, the Clarkii, and the Tomato clownfish varieties.

What is the life expectancy of designer clownfish breeds?

designer clownfish

by MtnDewMan

Designer clownfish crossbreeds have been around for over 13 years and new ones are popping up on the regular.

The designer varieties bred at the beginning of this period would not live more than 6 years on average.

However, breeders got better at selecting strong clownfish genetics and have refined the process.

Consequently, specimens that come from experienced breeders would often live for 10 or more years.

Given the life expectancy of natural breeds, it may be so that designer clownfish haven’t been around long enough for us to know their potential lifespan with certainty.

Pet Clownfish Care Tips for Extending Their Potential Lifespan

multiple species clownfish

by Brianstone575

Clownfish are a staple in the saltwater hobby for a reason.

They’re hardy, non-demanding, accept all kinds of food, and have attractive looks and behavior. These traits made them one of the best beginner saltwater fish.

However, if a fish is hardy it does not mean that I should keep it in subpar conditions.

There are two main ways you can improve the potential lifespan of your pet clownfish:

  • A varied diet;
  • A stress-free aquarium.

Providing a diversified diet to your clownish is fairly simple.

You just source a variety of meaty foods, frozen or live. Rotate mysis and brine shrimp, some high-quality pellets, and offer worms on occasion.

On the other hand, creating a stress-free aquarium for your pet clownfish requires making effort on several fronts.

See, stress is a major contributor to a weak immune system in fish. And a weak immune system can be the demise of your new pet buddy.

Everything that’s out of the norm can be stressful to our fish. Common stressors for a clownfish are:

  • Sudden water temperature changes. These are more common than aquarists like to admit or realize;
  • Choosing the wrong tank mates. Putting a peaceful Ocellaris clownfish in an aquarium with needlessly aggressive fish is something you should avoid by doing proper research;
  • Sudden shifts in various water parameters such as Nitrogen content and pH. Mastering the upkeep of your aquarium’s water and maintaining its parameters stable is key to a stress-free life for your fish;
  • Bad acclimation methods. This process is often overlooked and rushed because people are too eager to add the fish to their new tank;
  • Introducing diseases from the fish store. Clownfish are relatively resilient but this does not mean you should be careless when adding fish that may be sick to the system.

Another great way to extend the life of your clownfish is to regularly monitor its behavior for signs of illness.

Treating your pet fish’s disease in time improves the chances of its survival. Always consult with your vet when in doubt.

Starting a clownfish aquarium is a long-term commitment

clownfish aquarium

by MarineCorp

Given that, with good care, a clownfish can outlive three generations of dogs, you should be prepared for what’s coming.

If possible, get the right tank size from the beginning so you don’t have to upgrade the setup later on.

Do proper research on the way clownfish live and what they need to thrive.

Make sure to choose the right tank mates.

Get a cool anemone, although, contrary to popular belief, clownfish do not need one to live a long and fulfilling life.

Be patient and enjoy the start of a new life-long friendship.

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Momchil Boyanov is the Founder and now Senior Editor of AquAnswers. He has over 13+ years of experience in keeping home aquariums as well as providing professional aquarium services. Momchil has had his fair share of adventures in aquarium care. He has made MANY mistakes throughout his fishkeeping journey and thus learned A LOT. Through Aquanswers, Momchil shares knowledge about freshwater and saltwater aquariums with the people within this community.

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