Your Cart

Live fish will be delivered only to selected pincodes in Kolkata and nearby areas.

Here's a clean summary of all the important details about the Sterba’s Cory Catfish (Corydoras sterbai):


🐟 Overview

  • Scientific Name: Corydoras sterbai

  • Common Names: Sterba’s Cory, Sterbai Cory, Sterbai Catfish

  • Origin: Native to the Guaporé River region in Brazil and Bolivia

  • Family: Callichthyidae (armored catfish)

  • Described: 1962

  • Popularity: One of the most loved Corydoras species due to its striking appearance and peaceful nature.


🎨 Appearance

  • Size: 2–2.6 inches (5–6.5 cm); some may reach up to 3 inches in large tanks.

  • Body Color: Dark body with bright white spots.

  • Head: White spots on a dark background (unlike similar species).

  • Fins: Bright orange pectoral fins with some striping.

  • Sex Differences:

    • Females are slightly larger and rounder, especially when viewed from above.

    • Males are more slender.


🏡 Tank Setup

  • Tank Size: Minimum 20 gallons for a small group. Preferably 25+ gallons.

  • Social Structure: Must be kept in groups of 5–6 or more.

  • Substrate: Soft sand or smooth fine gravel to prevent barbel injury.

  • Décor: Driftwood, caves, live or silk plants, shaded hiding areas.

  • Lighting: Moderate to low; they prefer dim or shaded environments.

  • Filtration: Gentle to moderate current with good oxygenation.

  • Lid: Recommended — while rare, they may dart upward if startled.


💧 Water Parameters

  • Temperature: 75–80°F (24–27°C)

  • pH: 6.0–7.6 (ideal: 6.5–7.5)

  • Water Hardness: 1–15 dGH (soft to moderately hard water)

  • Water Quality: Very sensitive to ammonia and nitrite. Perform regular water changes (20–30% weekly).

  • Oxygenation: Good surface agitation and oxygen levels preferred.


🍽️ Diet

  • Diet Type: Omnivorous bottom-feeder

  • Primary Food:

    • Sinking pellets and wafers (especially ones formulated for catfish or bottom dwellers)

  • Supplementary Foods:

    • Live or frozen: bloodworms, brine shrimp, daphnia

    • Vegetables: blanched zucchini, spinach, or peas (occasionally)

  • Feeding Frequency: 1–2 times per day in small amounts

  • Note: They should not be relied on as scavengers only — they need dedicated feeding.


🤝 Behavior & Tankmates

  • Temperament: Very peaceful, non-aggressive, shy without a group

  • Activity: Active mostly at dawn/dusk or in dim light

  • Best Tankmates:

    • Small peaceful species: tetras, rasboras, guppies, mollies, dwarf gouramis, platies

    • Other Corydoras species

    • Shrimp and snails (they usually don’t bother them)

  • Avoid:

    • Aggressive or large fish

    • Fin-nippers like tiger barbs

    • Large bottom dwellers that compete for territory (e.g., big plecos)


🥚 Breeding

  • Breeding Difficulty: Moderate

  • Breeding Tank Setup:

    • Bare-bottom or sand tank

    • Sponge filter, hiding spots, slightly cooler water

  • Spawning Behavior:

    • T-position mating

    • Females lay eggs on glass, plants, or decorations

  • Spawning Trigger:

    • Frequent cool water changes and protein-rich diet

  • Egg/Fry Care:

    • Remove adults post-spawning to prevent egg eating

    • Eggs hatch in ~3–5 days

    • Feed fry: infusoria → powdered fry food → baby brine shrimp


❤️ Lifespan & Health

  • Lifespan: 5–10 years (some live up to 15 with excellent care)

  • Health Tips:

    • Sensitive to poor water quality and nitrates

    • Keep substrate clean to avoid barbel infections

    • Avoid rough substrate (can cause injury and secondary infections)

    • Quarantine new fish to prevent introducing diseases

  • Diseases to Watch For:

    • Fin rot

    • Ich

    • Bacterial infections (especially near the barbels)


✅ Pros & Cons

Pros Cons
Striking appearance Sensitive to dirty substrate
Peaceful and great for communities Requires a group to thrive
Long lifespan (with good care) Needs very clean water
Easy to feed Not ideal for rough or fast-flowing tanks
Can be bred in home aquariums May stress easily if kept alone or overcrowded

📌 Quick Facts Summary

Trait Value
Size 2–2.6 inches (up to 3")
Tank Size Minimum 20 gallons
Temperature 75–80°F (24–27°C)
pH 6.0–7.6
Diet Omnivorous, bottom-feeder
Group Size Minimum 5–6
Lifespan 5–10 years (or more)
Temperament Peaceful, social
Breeding Ease Moderate
Activity Level Calm, bottom-dwelling, shy


We process orders on all weekdays (Monday to Saturday), excluding public holidays.

To avail free shipping, purchase amount should be Rs350/-(for Aquarium Accessories and Aquatic Plants) or more, less than the above amount shipping charges applicable Rs70/- only. For live fish delivery charges applicable at the time of checkout.

Orders are normally Shipped within 1-2 days and usually take 2-5 working days to be delivered based on your location. However, you will receive an approximate timeline when you place your order.

To ensure that your order reaches you quickly and in good condition, we only ship through reputed courier agencies.

Let us know abour your query!