Keeping Corydoras and Shrimp Together - "Corydoras pygmaeus" by Joel Carnat is licensed under CC BY 2.0.
Keeping Corydoras and Shrimp Together - "Corydoras pygmaeus" by Joel Carnat is licensed under CC BY 2.0.


Keeping Corydoras and shrimp together in a harmonious aquarium community can be a captivating and rewarding endeavor for aquarium enthusiasts. These two fascinating aquatic species, each possessing unique attributes, come together to create a dynamic and visually appealing underwater world. Through careful consideration of their environmental needs, compatible tank mates, and behavioral characteristics, aquarists can foster a thriving ecosystem that showcases the delightful interactions between the charming Corydoras catfish and the captivating shrimp. Discover the art of maintaining a balanced and captivating aquatic habitat, where the symbiotic relationship between these gentle bottom-dwellers and diligent scavengers flourishes, offering an enchanting display for all who observe.

About Corydoras

Corydoras, commonly known as Corydoras catfish or simply “Cory cats,” are a group of small, freshwater fish that belong to the family Callichthyidae. They are native to South America and are well-loved among aquarium enthusiasts for their unique appearance, peaceful nature, and beneficial behavior in a community tank. Let’s explore their appearance and behavior in more detail:


Corydoras are easily recognizable due to their distinctive appearance. They have a compact, elongated body with a broad head and large, round eyes. The most striking feature of Corydoras is their barbels, which are long, whisker-like sensory organs that extend from their mouths. These barbels help them navigate and locate food in the substrate of their natural habitat. Corydoras also possess a bony armor-like plating called scutes, covering their bodies, which serves as a protective shield against potential predators.

Corydoras species come in various colors and patterns, including shades of bronze, green, brown, black, and even albino varieties. Some species exhibit speckles, spots, or stripes, making them visually appealing additions to a community aquarium.


Corydoras are known for their peaceful and social behavior. They are shoaling fish, which means they prefer to live in groups. In the wild, they form schools to enhance their chances of survival and to engage in natural behaviors. When kept in an aquarium, it’s essential to have at least a small group of Corydoras to ensure their well-being and happiness.

One interesting aspect of Corydoras behavior is their “army-crawl” movement. They have a unique way of swimming along the substrate, reminiscent of a military crawl, which is both amusing and endearing to watch.

Corydoras are primarily bottom-dwellers, spending much of their time scavenging for food in the substrate. They are omnivores, meaning they eat a variety of foods, including algae, small aquatic invertebrates, and decaying organic matter. In an aquarium, they will readily accept sinking pellets, wafers, and occasional live or frozen foods.

About Shrimp

Shrimp are captivating and popular inhabitants of aquariums, known for their fascinating appearance, interesting behavior, and valuable role in the ecosystem. Various species of shrimp are kept in aquariums.


Shrimp have a unique and eye-catching appearance that makes them stand out in the aquarium. They typically have a long, slender body with multiple segments and are equipped with legs. Their front pair of legs have pincers, or chelae, which they use for various purposes, including gathering food, defending themselves, and interacting with other shrimp.

One notable feature of shrimp is their often transparent exoskeleton, which allows us to observe their internal organs, including the digestive tract and even developing eggs in females. This transparency adds to their appeal and makes them intriguing subjects for aquarium enthusiasts.

In addition to their natural transparent coloration, some shrimp species exhibit striking hues, such as red cherry shrimp, blue velvet shrimp, crystal red shrimp, and many more, which have been selectively bred for their attractive colors and patterns.


Shrimp are fascinating to watch due to their diverse and often entertaining behaviors. Here are some common behaviors observed in aquarium shrimp:

  • Foraging and Cleaning: Shrimp are natural scavengers, and they spend much of their time foraging for food in the substrate and on plant surfaces. They are particularly helpful in keeping the aquarium clean by consuming detritus, algae, and leftover food, contributing to the overall balance of the ecosystem.
  • Molting: Like other arthropods, shrimp undergo molting, shedding their exoskeleton to accommodate their growth. Before and after molting, shrimp might become more reclusive and vulnerable, so it’s essential to provide them with sufficient hiding places to alleviate stress during this period.
  • Social Interactions: Shrimp, especially species like Amano shrimp and ghost shrimp, are social creatures that thrive in the company of their own kind. They often exhibit group behaviors, and when kept in larger numbers, they form intriguing hierarchical structures within the community.
  • Breeding and Reproduction: Breeding shrimp can be an exciting and rewarding aspect of keeping them in an aquarium. Female shrimp carry developing eggs (often green or yellow in color) under their bodies until the tiny shrimp hatch and become miniature versions of their parents. Proper care and water conditions are essential for successful breeding.
  • Exploration and Climbing: Some shrimp species, such as the popular amano shrimp, are proficient climbers and can be observed scaling aquarium decorations, plants, and even the aquarium walls.
Keeping Corydoras and Shrimp Together - "Corydoras pygmaeus" by Joel Carnat is licensed under CC BY 2.0.
Keeping Corydoras and Shrimp Together – “Corydoras pygmaeus” by Joel Carnat is licensed under CC BY 2.0.

Keeping Corydoras and Shrimp Together

Keeping Corydoras and shrimp together in the same aquarium can be a rewarding and enjoyable experience. However, it requires careful consideration of certain factors to ensure the well-being of both species. Here are some guidelines to successfully keep Corydoras and shrimp together:

  • Tank Size: Ensure you have a sufficiently sized aquarium to accommodate both Corydoras and shrimp comfortably. A larger tank provides more space for both species to explore and reduces the chances of territorial conflicts.
  • Hiding Places: Create plenty of hiding spots and cover using live plants, driftwood, and caves. Both Corydoras and shrimp appreciate places to retreat when they feel stressed or vulnerable.
  • Substrate: Use a soft substrate, such as sand or fine gravel, to protect the delicate barbels of Corydoras. A soft substrate is also beneficial for shrimp, as they can forage and graze on the surface.
  • Water Parameters: Maintain stable and suitable water parameters for both species. Corydoras prefer slightly acidic to neutral pH levels (around 6.5 to 7.5) and a temperature range of 72°F to 78°F (22°C to 26°C). Depending on the specific shrimp species, water parameters might vary, but most freshwater shrimp prefer similar pH and temperature ranges.
  • Feeding: Ensure all tank inhabitants receive proper nutrition. Corydoras are omnivores and will accept sinking pellets or wafers, along with occasional live or frozen foods. Shrimp are scavengers and will eat algae, detritus, and leftover food. Offering a varied diet ensures both species thrive.
  • Tank Mates: Choose tank mates that are compatible with both Corydoras and shrimp. Peaceful community fish, such as tetras, rasboras, and guppies, generally make good tank mates for both species. Avoid aggressive or fin-nipping fish, as they might harass the shrimp or stress the Corydoras.
  • Observation: Regularly observe the tank to ensure there are no signs of stress, aggression, or compatibility issues. If any issues arise, be prepared to make adjustments, such as rehoming aggressive tank mates or providing additional hiding spots.

By following these guidelines and maintaining a well-balanced and harmonious environment, you can create a thriving community aquarium that includes both Corydoras catfish and shrimp. Enjoy the delightful interactions and behaviors of these fascinating creatures as they coexist in your aquatic ecosystem.


Keeping Corydoras and shrimp together in a well-designed and thoughtfully curated aquarium community can be a truly enriching experience for aquarists of all levels. By understanding the unique characteristics and requirements of these captivating species, enthusiasts can create a thriving aquatic world that demonstrates the beauty of nature’s harmony. The graceful movements of the Corydoras catfish alongside the diligent foraging of the shrimp paint a mesmerizing picture of coexistence, proving that with careful consideration and dedication, diverse aquatic life can thrive in perfect symbiosis. As each day unfolds in the underwater realm, the captivating interactions between these delightful creatures serve as a reminder of the wonders of nature and the joys of keeping Corydoras and shrimp as cherished inhabitants of our aquatic sanctuaries.