Clown Loach


Clown Loaches are distinctive fish with bold black and orange stripes that make them a lively and colorful addition to any aquarium. They are social and playful, often seen swimming in groups and exploring their surroundings. Known for their peaceful nature, Clown Loaches get along well with other fish, adding both charm and activity to community tanks.

Clown Loach Care


Where Do Clown Loach From?

The Clown Loach, scientifically known as Chromobotia macracanthus, originates from the freshwater river systems of Sumatra and Borneo. These regions provide the ideal environment for Clown Loaches, which thrive in soft, slightly acidic to neutral waters.

First described by a Dutch physician named Peter Bleeker in 1852, this species was initially categorized as Cobitis macracanthus. Later, in 2004, Swiss ichthyologist Maurice Kottelat reclassified it, giving it the current name, Chromobotia macracanthus.

Exploring their natural habitats, you’ll find that Clown Loaches prefer slow-moving streams and floodplains. These environments are rich in vegetation, providing ample hiding spots and a diverse diet.


What Is the Natural Habitat of a Clown Loach?

Clown loaches thrive in spacious aquariums. A 55-gallon tank is the minimum for a solitary loach, but a larger tank of at least 100 gallons is ideal for a group of five or six.

They prefer environments that mimic their natural habitat. Clear, slow-flowing water with temperatures between 78°F and 87°F and a pH level of 6.5-7.0 mimics their natural conditions.

You should include plenty of hiding spots using plants, rocks, and driftwood. These structures provide security and reduce stress for the loaches.

A tight-fitting lid is essential. Clown loaches are known for their jumping ability, so make sure there’s no risk of them escaping.

Besides space and water conditions, consider the substrates. Sand or finely-grained gravel is ideal for these bottom dwellers to forage naturally without hurting themselves.

Ensure the tank has a gentle water flow to simulate their native streams and rivers, which helps keep them healthy and active.


What Do Clown Loach Eat?

Clown Loaches are omnivores and thrive on a varied diet. They enjoy a mix of both animal and plant-based foods, such as small invertebrates, insects, worms, and plant matter.

In captivity, you can offer them high-quality flake or pellet foods as a staple. Supplement their diet with live or frozen foods like bloodworms, brine shrimp, and daphnia.

Don’t forget to include some blanched vegetables like zucchini, cucumber, and spinach. These provide essential nutrients and variety.

Be mindful of feeding habits. Avoid overfeeding and remove uneaten food promptly to maintain water quality and prevent health issues like constipation.


Clown Loaches are extremely social and playful creatures. They thrive in groups of at least five and can become shy and withdrawn if kept in smaller numbers.

These fish are peaceful and get along well with suitable tank mates, making them ideal for community aquariums. You’ll often see them chasing each other around the tank, displaying their lively nature.

Clown Loaches spend a lot of their time foraging in the substrate. Their behavior includes sifting through the gravel and looking for food, so make sure your substrate is comfortable for this purpose.

They’re also known to be active during the day and may sometimes exhibit curious behavior like occasionally resting on their sides, which can alarm new fish keepers but is completely normal for this species.

A tight-fitting lid on your tank is necessary since Clown Loaches are skilled jumpers. They also need plenty of swimming space, so a large tank is essential to accommodate their energetic behavior.

Keeping these points in mind will help you create a suitable environment for your Clown Loaches, ensuring they remain healthy and happy.

Are Clown Loach Aggressive?

Generally, no. Clown loaches are known for their peaceful nature and are often great community tank members. They usually get along well with a variety of tankmates, making them popular in community aquariums.

However, you might notice occasional aggressive behavior.

This mainly stems from their natural curiosity or the need to establish a hierarchy in the tank. You might see them “tinkling” or nudging other fish. It’s usually harmless and more about social interaction rather than true aggression.

To minimize any aggressive tendencies, ensure you keep them in a shoal of at least five. When kept in smaller numbers, clown loaches can become stressed and more prone to hiding, which can lead to unusual behavior.

Providing plenty of hiding spots and keeping the tank environment stable also helps. A well-maintained tank with appropriate water conditions reduces stress, making aggressive outbursts less likely.

Introduce them to a quarantine tank before adding them to your main aquarium. This step is crucial since stressed or sick fish are more likely to exhibit aggressive behavior. Quarantining also helps prevent the spread of diseases like ich (white spot disease), to which clown loaches are particularly susceptible.

Tank Size

How Big of a Tank Does a Clown Loach Need?

For Clown Loaches, tank size is one of the most crucial aspects of their care. These fish are active and grow quite large. A single Clown Loach needs a minimum of a 55-gallon tank.

However, it’s best to keep them in groups. For a small group of five, a 100-gallon tank is recommended.

Greater space ensures they have enough room to swim and exhibit their natural behaviors. If you aim to keep five adults, consider a tank size around 150 gallons. This will provide roughly 30 gallons of water per loach.

High-quality tank conditions are essential. Regular water changes and efficient filtration will help maintain a healthy environment.


What Are the Best Tank Mates For Clown Loach?

The best tank mates for the Cherry Barb are those that can thrive in similar conditions and won’t provoke aggressive behavior. Considering this, options like Corydoras Catfish and Neon Tetras make excellent companions. Corydoras Catfish are peaceful bottom-dwellers that can live in the same water conditions, while Neon Tetras are small, calm fish that are compatible with the moderately lit, spacious environment preferred by Cherry Barbs.

When choosing companions for your Cherry Barb, it’s crucial to consider their natural habitat and behavioral patterns. Cherry Barbs are generally peaceful and enjoy being in groups. Selecting similarly sized, calm tank mates that can coexist without causing stress is key to maintaining a harmonious community tank.

To create an ideal home for your Cherry Barbs and their companions, ensure you’re setting up a tank that meets their specific requirements. A 20-gallon tank with plenty of plants and open swimming areas is perfect for mimicking their natural environment. This setup not only provides ample space for swimming but also helps reduce stress by offering plenty of places to explore and hide.


How Big Do Clown Loach Get?

Clown Loaches can grow to a considerable size, often reaching up to 12 inches when fully mature.

In the wild, they may even get slightly larger. When they’re juveniles, these fish are usually around 2-3 inches long.

Their impressive growth means you’ll need to provide them with adequate space in your tank as they get bigger.

How to Take Care of a Clown Loach

Maintain Clean Water

Keeping your Clown Loach’s water clean is essential for their health. Regular water changes are crucial; aim to swap out 20-25% of the tank water weekly. This helps remove waste and toxins that can build up over time.

Use a reliable filter to maintain water quality. Make sure to clean the filter media regularly according to the manufacturer’s instructions. A clean filter ensures that water stays clear and free of harmful substances.

It’s also a good idea to monitor the water for any cloudiness or strange odors. These can be early signs of poor water quality. Address issues promptly to keep your Clown Loach happy and healthy.

Monitor Water Parameters

Regularly check the water parameters in your tank to ensure a healthy environment for your Clown Loach. Use a reliable test kit to measure ammonia, nitrate, and nitrite levels. The pH should stay between 6.5 and 7.0, and the temperature should be kept at 78°-87°F.

Keep the water soft, with a hardness between 5 and 12 dGH. Any sudden changes can stress your fish, so monitor the conditions weekly. Adjust as necessary, following the recommendations for your Clown Loach. A quality filter can help maintain these conditions, keeping the water clean and stable.

Regular water changes are also essential. Aim to replace about 25% of the tank water every two weeks. This helps remove toxins and maintain a stable environment for your loaches. Remember, a consistent and healthy environment helps in preventing stress and diseases in your fish.

Feed a Balanced Diet

It’s crucial to offer clown loaches a varied diet. They enjoy a mix of meaty and vegetable-based foods. Give them brine shrimp, bloodworms, and high-quality pellets for protein.

Include vegetables like zucchini and lettuce in their diet. Spirulina flakes are also a good choice. Avoid overfeeding, as it can lead to health issues like bloating.

For their best health, try to feed them small amounts two to three times a day. This keeps them active and ensures they get all necessary nutrients.

Provide Hiding Places

Clown loaches love having hiding spots. They feel safer and more comfortable when they have places to retreat. You should include items like driftwood, rocks, and caves in your tank to provide these hiding places.

Aquarium plants can also offer excellent cover for clown loaches. Consider using live aquatic plants to mimic their natural habitat. They’ll appreciate the extra shelter and the natural feel.

Make sure the hiding spots are big enough for the clown loaches to fit comfortably. They also enjoy exploring tight spaces, so different-sized shelters can keep them entertained. More hiding spots reduce stress and promote healthier behavior.

Use Soft Substrate

Clown loaches thrive best with a soft substrate in their tank. A mix of fine sand and smooth gravel helps replicate their natural environment. This is essential because they often forage at the bottom.

Using soft sand also prevents injury to their delicate barbels, which they use to search for food. Rough or sharp substrates can cause damage and stress to the fish, leading to health problems.

Another benefit of soft substrates is aiding in the exfoliation process for clown loaches. They sometimes burrow into the substrate, which helps them maintain healthy skin. Choose substrates that are easy on their bodies and promote natural behaviors.

Maintain Proper Temperature

To ensure your Clown Loach thrives, you need to keep the water temperature between 78°F and 85°F. These tropical fish are very sensitive to temperature fluctuations. Use an adjustable heater to consistently maintain the appropriate temperature range.

Regularly check the water temperature with a reliable aquarium thermometer. Consistency is key, as sudden changes can stress the fish. Keeping a stable environment will help your Clown Loach stay healthy and active.

Keep in Groups

Clown loaches are social fish that thrive when kept in groups. It’s recommended to keep them in groups of at least five to ensure they feel secure and exhibit natural behaviors. If they’re kept in smaller numbers, clown loaches can become timid and spend most of their time hiding.

These fish interact closely with their peers, often foraging together in the substrate. Keeping them in a group allows them to display their playful and active nature. You’ll notice them engaging with each other, which makes your tank lively and interesting to watch.

Groups of clown loaches contribute to a healthier aquarium environment. Their social interactions help reduce stress levels, promoting better overall health and longevity. Providing a suitable group size is crucial for their well-being and overall happiness.

Avoid Aggressive Tankmates

When choosing tankmates for your clown loach, it’s important to avoid aggressive species. Aggressive fish can cause stress and harm to your loach, which thrives in a peaceful environment. Avoid species like cichlids and bettas, known for their territorial and combative behavior.

Clown loaches are peaceful and get along well with other non-aggressive species. Opt for tankmates like tetras, rasboras, and gouramis, which tend to have calm temperaments.

Ensuring compatibility among tankmates helps prevent stress and injury. Happy and healthy clown loaches will display their natural playful behaviors, making your aquarium a more enjoyable and lively environment.

Prevent Disease with Quarantine

Quarantining new fish before adding them to your tank is essential. New arrivals can carry diseases, and isolating them helps keep your existing fish healthy.

Keep new clown loaches in a separate tank for at least two weeks. Watch for signs of illness such as Ich or white spots during this period.

Maintain good water quality in the quarantine tank. Regular water changes and proper filtration reduce stress and promote recovery if any issues arise.

Regular Tank Maintenance

Regularly cleaning your clown loach tank is crucial. Start by performing partial water changes every week. This helps in removing waste and keeping your fish healthy.

Make sure to vacuum the substrate to remove uneaten food and debris. Algae can build up on the glass, so use a scraper to keep the surfaces clean.

Check and clean your filter every month. This ensures it operates efficiently, maintaining water quality. Always rinse filter media in tank water to preserve beneficial bacteria.

Monitor equipment like heaters and lights. Ensure they’re functioning correctly to maintain a stable environment for your clown loaches.

Regular maintenance keeps your tank clean and your fish happy. Stick to a schedule for best results.