Pregnant Clownfish : How Can I Know It?

Pregnant Clownfish: You may have heard about pregnant clownfish, but how can you know if the fish is really pregnant? The first thing to do is look at the stomach. If it looks swollen and has a lot of eggs then it’s likely that she is pregnant. If you want to be sure, take her out of the tank and open up her belly with scissors. This will tell you for certain if she is carrying eggs or not!

Clownfish Breeding

Clownfish, unlike livebearers, produce eggs that are fertilized by the male clownfish.

In an interesting twist, clownfish are actually hermaphrodites. This means that they can either Swtor credits become male or female during their lifetime depending on their circumstances.

If you add a few clownfish in the tank then two out of them would develop sex organs. Depending on their gender, either one male or one female will take over and mature into the other if necessary. One male and one female will breed together for successful fertilization.

Clownfish don’t get pregnant but the female produces eggs that are fertilized by a male fish. When your female clownfish is about to produce eggs, it will become aggressive, bigger in size, and very protective. It would stay in one place she thinks is suitable for her eggs.

The male then fertilizes the eggs and voila! The eggs hatch into larvae and finally, baby clownfish appear. The fertilization process is difficult to undertake, but it is always possible.

How To Know If Your Clownfish Is Pregnant?

When fish is ready to lay eggs, they show signs of being pregnant and observation is key so as not to neglect them.

A pregnant clownfish will show signs before laying its eggs. All these signals are connected so watch them carefully.


When a clownfish produces eggs, its stomach becomes enlarged. This is because the egg-producing organ expands and makes the fish’s belly larger than normal.

So if you see your clownfish is growing bigger, it can be a sign that the fish is pregnant. But this single sign isn’t enough to tell for sure – there are other signs as well.


Clownfish sex organs are prominent features of both female and male fish. These protrusions help facilitate the reproduction process.


Your clownfish may become aggressive during breeding season as she prepares to produce eggs. She will drive off other fish and organisms from her area with a preconceived notion that there is no danger of her eggs not being fertilized.

When you see this aggressive behavior, remove other fish from the tank. Displacing a mother clownfish during breeding can hinder its progress.


When the clownfish is about to produce eggs, it starts to find a good place that can be suited as a nesting site this will depend on the preference of each clownfish. This habitat selection is common in fish because they use their instinct which is when they are at breeding season. The male also protects the nest by sitting close and watching over the eggs.

In time during pregnancy, your attempts to get a clownfish to lay their eggs in one particular area will not work. So, do not disturb them and let them place them in an area they would like.


Clownfish usually settle in one position to lay their eggs, and they do not swim around as much afterward.

Though laziness is the most common cause of this symptom, it may be due to other causes as well. If you notice any of these signs then it is likely the eggs will be fertilized soon.

How To Ease The Fertilization Process?

You can help your clownfish to fertilize their eggs by:

  • The diet of an expectant mother should be rich in protein. Offer them live food, such as bloodworms, and make sure not to overfeed them.
  • Keep your tank clean. Remove toxins if you need to.
  • When you feel the clownfish is about to lay eggs, remove other fish from the tank. Keep space open and danger out of sight for a better chance at fertilization.
  • Don’t be too noisy when the fish are spawning. They will become more aggressive and might stop laying eggs.

Although clownfish usually produce eggs after maturing, it is difficult for these eggs to survive and hatch with only the father clownfish. There are no real guarantees that when you deposit a male and female clownfish into an aquarium that they will produce offspring right away. Although achieving this feat can be challenging, you may at least enjoy some clownfish.

How Long Are Clownfish Pregnant?

Spawning regulates, clownfish spawn every 10-14 days. Clownfish eggs then hatch between 8 and 10 days later. Clownfish larvae are usually born back-to-back evenings – a trait that will drive you nuts if you try to collect them from a breeding tank


Will Clownfish Eggs Survive?

Yes! If the male is properly fertilized and cared for, clownfish eggs will survive until they hatch – around 8 days after fertilization. After that, you’ll see tiny clownfish larvae about three millimeters in length. The newly hatched larvae, however, require special feeding and care for continued survival.

Do clownfish leave their babies?

Setting up a dedicated breeding tank is much easier to take care of the fish and rescue the baby clownfish. The clownfish seem less anxious, and they generally leave the newly hatched larvae alone if you need to snag the larvae out of the breeding tank after hatching.

Where do clownfish lay their eggs?

Clownfish lay their eggs in batches on coral, rock, or next to the sea anemone that they call home. The male clownfish will build a nest on the rock or coral near the anemone to be protected from predators. Breeding starts with the male chasing the female to the nest where the eggs are released.


This article discusses pregnant clownfish. I spent almost the whole day researching it. Hope it can help you!

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