Black Banded Catfish, Zygat (Corydoras zygatus) — 4-5cm

Overview

For aquarists seeking a distinctive corydoras catfish for sale UK, the Corydoras zygatus—known as the Black Banded Catfish or Zygat—offers striking patterning and reliable community behavior. Native to the Amazon basin in South America, this peaceful schooling species reaches around 4 cm in length and thrives in well-planted aquariums with soft, clean water. Its bold black banding contrasts beautifully with a pale cream or silver base, making it a visual standout among bottom-dwellers. At Tropical Fish Co, we supply healthy juveniles that adapt quickly to aquarium life and reward attentive care with years of active foraging and social interaction.

Appearance and Coloration

Corydoras zygatus is instantly recognizable by the prominent black vertical bands that run from the dorsal region down to the belly, creating a zebra-like effect. The base coloration ranges from pale cream to silvery-white, and the fins are largely translucent with faint pigmentation. The body is compact and armored, typical of the Corydoras genus, with a rounded snout and sensitive barbels adapted for substrate exploration. Juveniles display the same bold patterning as adults, and the contrast intensifies as the fish matures. Under good lighting, a subtle iridescence may appear along the flanks.

Natural Habitat and Distribution

The exact native range of Corydoras zygatus is not comprehensively documented, but the species is associated with slow-moving tributaries and flooded forest zones of the Amazon basin. These habitats feature soft, acidic water with abundant leaf litter, submerged wood, and fine sediment. During the rainy season, the fish move into shallow flooded areas to forage among roots and fallen branches. Water temperatures are stable between 22–26 °C, and the environment is dimly lit with heavy tannin staining. Replicating these conditions at home encourages natural behavior and optimal health.

Aquarium Setup and Décor

An 80-litre aquarium provides ample space for a group of five or six Corydoras zygatus. Use soft sand or very smooth rounded gravel to protect the delicate barbels, which are essential for foraging. Décor should include driftwood, smooth stones, and live plants such as Java fern, Anubias, and Amazon swords. Floating plants help diffuse lighting and create shaded zones. Avoid sharp-edged decorations or coarse substrates, which can damage the barbels and lead to infection. A secure lid is recommended, as Corydoras occasionally dart to the surface for gulps of air.

Feeding and Nutrition

Corydoras zygatus is an omnivore that thrives on a varied sinking diet. Offer quality catfish pellets or wafers as a staple, supplemented with frozen or live foods such as bloodworms, daphnia, brine shrimp, and chopped earthworms. Occasional blanched vegetables like courgette or cucumber can be offered, though meaty foods form the core of the diet. Feed once or twice daily in small portions, ensuring food reaches the substrate before mid-water fish consume it. Sinking foods prevent competition and allow the catfish to forage naturally along the bottom.

Behaviour and Social Structure

These catfish are highly social and must be kept in groups of at least five to display confident, natural behavior. In smaller numbers they become shy and stressed, spending most of their time hidden. A well-adjusted shoal will actively forage across the substrate throughout the day, sifting sand through their gills and occasionally resting on plant leaves or driftwood. They are peaceful and compatible with a wide range of community fish. Males may engage in mild chasing during feeding, but aggression is extremely rare.

Compatible Tank Mates

Ideal companions include small peaceful tetras (neon, cardinal, ember), rasboras (harlequin, galaxy), and small peaceful loaches such as Kuhli loaches. Other peaceful Corydoras species make excellent co-habitants, as they occupy similar niches without competition. Avoid housing with large aggressive cichlids, fin-nipping barbs, large predatory fish, or highly territorial bottom-dwellers that may harass or outcompete them for food. Small shrimp can coexist if the tank is well planted and offers hiding spaces.

Breeding in the Aquarium

Like most Corydoras, breeding is usually triggered by excellent water quality, cooler water changes, and a protein-rich diet of live or frozen foods. Males are slightly smaller and more streamlined than the plumper females. Eggs are typically laid on glass, plant leaves, or smooth surfaces, and adults may eat them if not removed promptly. Spawning often occurs after a series of partial water changes with cooler water. Fry require infusoria or liquid fry food initially, graduating to micro-worms and finely crushed flake within a week. Breeding success is achievable with patience and careful attention to water conditions.

Why Buy from Tropical Fish Co

At Tropical Fish Co, every Corydoras zygatus is quarantined, health-checked, and acclimated to UK water conditions before dispatch. We source our fish from reputable suppliers who prioritize ethical collection and sustainable practices. Our livestock arrives in insulated packaging with heat packs during colder months, ensuring safe transit. With decades of combined fishkeeping experience, our team is available to answer questions about care, compatibility, and tank setup. Whether you're building your first planted community or expanding an established aquarium, we're here to support your success. Order with confidence and enjoy premium freshwater fish delivered to your door.