Many-spotted cory

Introduction

The Many-spotted cory (Corydoras polystictus) is a charming and peaceful bottom-dwelling fish native to South America. Its distinctive spotted pattern and gentle nature make it a favorite among aquarists seeking to add both beauty and functionality to their freshwater tanks. Suitable for both beginners and intermediate fishkeepers, this species thrives in well-maintained community aquariums.

Care and Environment

Providing optimal care for the Many-spotted cory involves attention to tank size, water parameters, and habitat setup.

What is the minimum tank size for a Many-spotted cory?

A minimum tank size of 40 liters (approximately 10 gallons) is recommended to house a small group of these social fish.

What are the ideal water parameters for Many-spotted corys?

Maintain a temperature between 22-28°C (71.6-82.4°F), a pH range of 5.7-7.8, and water hardness between 2-25°N (35.71-446.43 ppm) to replicate their natural environment.

How should the tank be set up for Many-spotted corys?

Use a soft, sandy substrate to protect their sensitive barbels. Incorporate hiding spots with driftwood, rocks, and plants like Amazon Swords, Anubias, and Java Ferns. Ensure the tank has subdued lighting and gentle filtration to mimic their natural habitat.

Feeding should include high-quality sinking pellets or tablets, supplemented with live or frozen foods such as bloodworms or brine shrimp. Feed them at dusk to ensure they receive adequate nutrition, as they are more active during this time.

Origin and Habitat

Native to the rivers of Paraguay and Brazil, the Many-spotted cory inhabits clear, slow-moving waters with sandy or detritus-covered bottoms. These environments often feature dense plant growth along the banks, providing ample cover and foraging opportunities.

Temperament and Compatibility

Many-spotted corys are peaceful and social, thriving in groups of five or more. They are compatible with other non-aggressive species such as tetras, guppies, and small rasboras. Avoid housing them with large or aggressive fish that may outcompete them for food or pose a threat.

Do Many-spotted corys need to be kept in groups?

Yes, they are shoaling fish and should be kept in groups of at least five to exhibit natural behaviors and reduce stress.

What are suitable tank mates for Many-spotted corys?

Suitable tank mates include small, peaceful species like neon tetras, harlequin rasboras, and guppies.

Interesting Facts

Many-spotted corys possess a unique ability to gulp atmospheric air, allowing them to survive in low-oxygen environments. This behavior is normal and not a cause for concern.

They are part of the "armored" catfish group, featuring two rows of bony plates along their flanks and sharp pectoral fin spines. Handle them with care to avoid injury.

Breeding often coincides with environmental changes, such as a drop in temperature or barometric pressure, which can be simulated by performing partial water changes with slightly cooler water.

Sources

All information in this article has been gathered from the following reputable sources:

• aqua-fish.net
• aquariumnexus.com
• aqueon.com