Green Aeneus Corydoras: Tips for Care, Tank Mates & Breeding

Greetings, fellow fish enthusiasts! Today, I’m excited to share with you my knowledge and experience on one of my favorite fish – the green aeneus corydoras. These small, peaceful catfish are a delight to have in any aquarium, but it’s important to know how to properly care for them to ensure their health and happiness.

In this article, I’ll cover the basics of green aeneus corydoras care, including suitable tank mates and tips on breeding them. By the end, you’ll have a better understanding of these unique and fascinating fish, and be equipped to provide them with the best possible environment.

Key Takeaways

  • Green aeneus corydoras are small, peaceful catfish that require specific care.
  • Their tank should be set up to mimic their natural habitat and include suitable tank mates.
  • Breeding them can be a rewarding experience, but requires proper conditioning and care of the fry.

Understanding Green Aeneus Corydoras

Green aeneus corydoras are a fascinating species of catfish native to the rivers and streams of South America. As their name suggests, they have a striking green coloration that sets them apart from other members of their family.

These fish have a distinctive shape, with a short and stocky body, a flattened head, and a pair of sharp barbels protruding from their mouths. They are generally peaceful and social, and can often be found in schools of up to 20 individuals in the wild.

Green aeneus corydoras are bottom-dwellers, and spend most of their time scavenging for food on the substrate. They have a unique feeding behavior, where they use their barbels to feel around for food in the sand, which they then suck up through their mouths.

If you’re looking for an interesting and attractive addition to your aquarium, green aeneus corydoras are definitely worth considering!

Setting Up the Ideal Environment

Green Aeneus Corydoras thrive in a well-maintained tank that is suited to their specific needs. Here are some essential tips on creating the perfect environment for these lovely fish.

Tank Size

A suitable tank size for Green Aeneus Corydoras should be at least 20 gallons. The tank should have a length of at least 24 inches, as these fish need plenty of swimming space.

Water Parameters

Corydoras prefer slightly acidic water with a pH level ranging from 6.0 to 7.0. A temperature of 72-79°F is ideal for these fish. It is important to check the water parameters regularly and make adjustments if necessary.


Green Aeneus Corydoras love a fine, soft substrate like sand or small-sized gravel. Avoid using sharp-edged gravel or rocks that may cause injury to their delicate barbels.


Live plants and driftwood are perfect additions to the tank as they mimic the natural habitat of Green Aeneus Corydoras. They also provide hiding places and improve the overall water quality. Avoid adding sharp-edged decorations and ensure they are stable to prevent injuries.


A filter is essential to maintain the water quality of the tank. Ensure that the filter is not too strong, as this may cause stress to the fish. A gentle flow will suffice for Green Aeneus Corydoras.


These fish do not require bright lights, and a moderate level of lighting will suffice. A consistent light schedule of 8-10 hours per day is recommended.

By following these tips, you can create a comfortable and safe environment for your Green Aeneus Corydoras, helping them thrive and grow.

Proper Care and Maintenance

Caring for green aeneus corydoras is relatively easy, but it is important to maintain their environment and provide proper nutrition to ensure their health and longevity. Here are some tips for proper care and maintenance:


Green aeneus corydoras are omnivores and will eat almost anything that fits in their mouth. The best diet for them is a varied one, which includes a mixture of high-quality sinking pellets, frozen or live bloodworms, brine shrimp, and vegetables like zucchini and spinach. Be sure to feed them small amounts several times a day to prevent overfeeding and water contamination.

Water Changes

Regular water changes are vital to maintaining the health of your green aeneus corydoras. Aim for a 25% water change every two weeks, and be sure to use a water conditioner to remove any harmful chemicals or contaminants that may be present in your tap water.

Tank Cleaning

It is important to maintain a clean environment for your green aeneus corydoras. You should use a gravel siphon during water changes to remove any uneaten food and debris that may have settled on the bottom of the tank. Additionally, you should scrub the sides of the tank with an aquarium-safe algae scraper or pad to prevent the buildup of algae.

Health Issues

If you notice any signs of illness or stress in your green aeneus corydoras, such as lethargy, loss of appetite, or unusual behavior, it is important to take action immediately. Quarantine any sick fish in a separate tank and seek advice from a veterinarian or a knowledgeable aquarium hobbyist for treatment options.

Compatible Tank Mates

When it comes to choosing tank mates for green aeneus corydoras, it is important to keep their peaceful nature in mind. They get along well with other non-aggressive fish that share similar water parameters and diet.

One great option is to keep them with other types of corydoras, as they enjoy the company of their own kind. Small tetras such as neon tetras or ember tetras can also make great companions, as can rasboras and guppies.

It is best to avoid fish that are larger and more aggressive, as well as those that may nip at the corydoras’ fins. Additionally, larger fish may view the corydoras as potential snacks and try to eat them.

One important thing to keep in mind is that green aeneus corydoras can be sensitive to certain medications and chemicals in the water. Therefore, before adding any new fish to the tank, it is essential to research their compatibility and potential impact on the corydoras’ health.

Breeding Green Aeneus Corydoras

If you’re interested in breeding green aeneus corydoras, there are several key things to keep in mind. First and foremost, these fish require a suitable and stress-free environment in order to breed successfully. Make sure your tank setup is ideal, with plenty of hiding spots and a balanced water chemistry.

One effective way to encourage breeding is by providing a varied diet that includes live or frozen foods. This can help stimulate their natural instincts and promote spawning behavior.

When your fish are ready to breed, you may notice the male and female engaging in a “T-position,” with the female laying her eggs and the male fertilizing them. After spawning, it’s best to remove the adult fish and let the eggs hatch on their own. This can take anywhere from a few days to a week or more.

Once the fry have hatched, it’s important to provide them with a suitable food source. Brine shrimp or finely crushed flakes are often recommended. You should also perform frequent water changes to keep the tank clean and healthy for the developing fry.

Remember, breeding fish can be a rewarding but challenging experience. If you’re new to breeding, it’s best to do your research and seek guidance from experienced aquarists before attempting to breed any fish species.

Troubleshooting Common Issues

While Green Aeneus Corydoras are generally hardy and easy to care for, there are some issues that may arise when keeping them. Here are some common problems and solutions:

Issue Solution
Cloudy Water Check water parameters and perform a partial water change. Ensure proper filtration and avoid overfeeding.
Fin Rot Isolate and treat the affected fish with an antibacterial medication. Improve water quality and avoid overcrowding.
Loss of Appetite Check water parameters and ensure proper feeding habits. Offer a variety of foods and consider adding live or frozen options.
Bloated Stomach Reduce feeding frequency and amount. Offer veggies and high-fiber foods. Consider adding an Epsom salt bath or medication if necessary.

If you notice any other unusual behavior or symptoms, it is important to act quickly to prevent any further issues. Consulting with a veterinarian or experienced fish keeper may also be helpful in resolving any problems.

Fun Facts about Green Aeneus Corydoras

Did you know that green aeneus corydoras are also known as bronze corydoras? This is because of their shimmering bronze-colored scales that reflect shades of green under the right light.

Green aeneus corydoras are also incredibly social fish. They enjoy the company of their own species and are known to swim in small groups, especially during feeding time.

One fascinating trait of green aeneus corydoras is that they are able to breathe air. This means that they can gulp air from the surface of the water, allowing them to survive in oxygen-depleted environments.

Green aeneus corydoras are omnivores and have a unique diet. They feed on small insects, worms, and crustaceans that they find in the substrate, but they also eat algae and other plant matter. This diet allows them to thrive in a variety of environments.

Another interesting fact about green aeneus corydoras is that they have been known to play dead when they feel threatened. This behavior is believed to be a survival mechanism that helps them avoid predators.

Finally, green aeneus corydoras are a popular choice for aquarium enthusiasts because they are easy to care for and have a peaceful temperament. They make excellent additions to community tanks and can brighten up any aquarium with their shimmering scales and playful nature.


Overall, I hope this article has provided you with a comprehensive understanding of how to care for green aeneus corydoras as pets. Remember to create the ideal tank environment with suitable tank mates, feed and maintain them properly, and if you choose to breed, do so responsibly.

Green aeneus corydoras are wonderful additions to any aquarium due to their peaceful nature and unique characteristics. With proper care and attention, they can live happy and healthy lives in your home.

Thank you for reading this article, and I hope you can apply the tips and knowledge shared here to create a thriving environment for your green aeneus corydoras!


Q: How do I care for green aeneus corydoras?

A: Green aeneus corydoras require a well-maintained aquarium with appropriate water parameters. They thrive in temperatures between 72°F and 79°F and prefer a pH level between 6.5 and 7.5. It’s important to provide them with a balanced diet of high-quality fish flakes, pellets, and occasional live or frozen foods.

Q: What are suitable tank mates for green aeneus corydoras?

A: Green aeneus corydoras are peaceful fish and can coexist with other peaceful community fish. Ideal tank mates include tetras, rasboras, guppies, and other small peaceful species. Avoid aggressive or large fish that may harass or prey on the corydoras.

Q: How can I breed green aeneus corydoras?

A: To breed green aeneus corydoras, you’ll need to create a separate breeding tank with specific conditions. Increase the temperature slightly to around 80°F and perform frequent water changes. Provide flat surfaces like spawning mops or broad-leaved plants for the females to lay their eggs. After spawning, remove the adults to prevent them from eating the eggs. The fry will hatch in about 4-5 days and can be fed with powdered fish food or specialized fry diets.

Q: What are common issues that green aeneus corydoras owners may encounter?

A: Some common issues include poor water quality, stress, and diseases like bacterial infections or parasitic infestations. It’s essential to maintain proper water parameters, perform regular water changes, and provide a well-balanced diet. If you notice any signs of illness, it’s recommended to quarantine affected fish and seek advice from a veterinarian or experienced aquarist.

Q: What are some fun facts about green aeneus corydoras?

A: Green aeneus corydoras, also known as emerald corydoras, are named after their vibrant green coloration. They are a peaceful species that loves to explore and can be found in the Amazon Basin. These catfish have delightful behaviors, such as nuzzling the substrate with their barbels and forming social groups within their shoals.

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