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Sterba's corydoras

Sterba's corydoras

Breed InfoHabitatNutritionHealth

Origin

🇧🇴

Bolivia

🇧🇷

Brazil

Habitat Size

50-150 liters

Water Type

Fresh Water

Water Temperature

22º-26ºC

Cost in India

₹80 - ₹150

Size

2 - 2.5 inches (Small)

Diet

Omnivore

single Sterbas corydoras with a spotted and striped body and yellow fins rests on dark gravel
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by Happy Pet TeamUpdated on 2 Dec 2025

Sterba's Corydoras, or Corydoras sterbai, is a small armored catfish admired for its bold spotted pattern and soft temperament. Instead of shimmering scales, it’s covered in bony plates that act like natural armor. It is very popular among fishkeepers because it is peaceful, interesting to watch, and helps tidy up bits of food from the tank bottom.

Origin

  1. These fish are native to South America, especially in the Guaporé River system between Brazil and Bolivia.
  2. In the wild, they live in small streams, creeks, flooded forest pools, and tributaries with gentle to moderate currents.
  3. They often experience seasonal changes—some waters shrink, others flood—so they are adapted to some variation in conditions.

Sterba's Corydoras Temperament

  1. Very calm, gentle, non-aggressive, making them ideal in community tanks.
  2. They spend most of the time near the substrate (bottom), “grazing” or picking bits of food.
  3. They are social — they feel safer and behave more actively when kept in groups.

Compatibility

Good tankmates

  1. Peaceful small fish like:
  2. Small characins
  3. Cyprinids
  4. Anabantoids
  5. Dwarf cichlids
  6. Gentle barbs
  7. Other non-aggressive catfish

Avoid

  1. Aggressive or large bottom fish, fish that are too boisterous, or that eat everything quickly.

Sterba's Corydoras Price Range in India

  1. Small size: ₹180
  2. Small/juvenile: ₹175
  3. Standard Sterbai: ₹165
  4. Small juvenile or small stock: ₹190
  5. Small to medium: ₹249

Characteristics

Temperament

Aggressive

Friendly

Compatibility with other fishes

Not Friendly

Super Friendly

Habitat Size

Small

Large

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Sterba's Corydoras Habitat Requirements

Initial Setup Cost

₹4,000 - ₹12,000

Water Temperature

22º -26ºC

Water Type

Fresh Water

PH Level

6 - 7.5

Sterba's Corydoras Tank Type

  1. Freshwater only; they are not suitable for brackish or saltwater.

Aquarium Size

  1. A small group (5–6 fish): 75–100 litres (≈ 20–25 US gallons) or more
  2. For heavily planted or more fish, use larger tanks to maintain stable water

Sterba's Corydoras Water Conditions

  1. Temperature: 24–28 °C (73–82 °F)
  2. pH: 6.0 to 7.5 (slightly acidic to neutral)
  3. Hardness (GH / KH): 1 to 15°H, moderate softness; they adapt but prefer moderate conditions

Environment Needs

  1. Substrates should be fine sand or very smooth fine gravel, so they do not damage their barbels.
  2. Provide hiding spaces:
  3. Driftwood
  4. Caves
  5. Plant clusters
  6. Leaf litter
  7. Overhangs
  8. Some open swimming area is good — don’t overfill with decor.
  9. Aeration and moderate water flow help imitate a natural habitat.
  10. Leave the surface open (i.e., space to reach the top) because they sometimes gulp air from the surface.

Essential Equipment

Aquarium tank

Water filter

Heater

Light

Substrate

Decor

Sterba's Corydoras Nutritional Guide

Avg Monthly Expenses

₹80 - ₹ 150

Diet Type

Omnivore — eats both small animal matter and plant-based bits

Sterba's Corydoras Suitable Foods

  1. Sinking pellets or wafers made for bottom-feeders
  2. Flake food that reaches bottom
  3. Live/frozen treats (occasional):
  4. Bloodworms
  5. Daphnia
  6. Brine shrimp
  7. Vegetables: tiny bits of cooked peas or zucchini occasionally

Feeding Frequency & Tips

  1. Feed once or twice daily, small amounts.
  2. Make sure the food reaches the bottom. If faster fish take food up top, drop food in quieter spots (under plants, behind objects).
  3. Vary diet to maintain health and color.
  4. Don’t overfeed — leftover food rots and causes poor water quality.
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Sterba's Corydoras Health & Care

Common Health Issues

Fin rot

White spot / ick

Bacterial infections

Swim bladder disease

Columnaris (cotton wool-like growth on the skin)

Signs of good health

Active

Bright coloration

Good apetite

Signs of sickness

Loss of appetite

Cloudy eyes

Lethargic behaviour

White growths

Swimming abnormally

Sterba's Corydoras common health issues

Internal Parasites & Worm Infestations

Symptoms include loss of appetite, becoming skinny, and sometimes show stringy feces. To treat that, use anti-parasite medications safe for catfish; isolate the sick fish, clean the tank well, and ensure water quality is good.

Columnaris / Mouth & Body Fungus

This presents as cottony patches or discoloration around the mouth/fins. Stress and poor water make fish vulnerable. Treatment is improving water, adding antibacterial/fungicidal medication, and removing injured parts to isolate them.

Skin Bacterial Infection

Red sores, ulcers, and inflamed areas on the body. These often come from injuries or poor water. To treat that, keep water very clean, apply broad-spectrum antibiotic treatment, and isolate severely affected individuals.

Barbel Erosion/Damage

Barbels may erode, shrink, or get infected if the substrate is rough or the water is poor. The fish may have trouble foraging. To treat that, switch to soft sand, maintain clean water, and use treatment for secondary infection.

Sterba's Corydoras General Health Tips

  1. Do regular partial water changes (20–30%) every week or two.
  2. Use a sponge filter or gentle filtration, especially in breeding setups, to avoid harming fry.
  3. Monitor ammonia, nitrite, and nitrate — keep ammonia and nitrite at zero.
  4. Always keep them in groups of 6 (lonely individuals are more stressed).
  5. Feed a varied diet, but not too much.
  6. Watch fish daily, early detection helps a lot.

Prerequisites for a Fish

Adequate tank space

Enriching Environment

Cleanliness

Effort & commitment

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Happy Pet Team

Author

Team Happy Pet is a passionate collective of pet experts, enthusiasts, and advocates dedicated to sharing trusted and insightful content.

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Frequently Asked Questions

What is the ideal tank size for Sterba's Corydoras?

A minimum of 20 liters is recommended for a small group of 5-6 fish.

Are Sterba's Corydoras good for beginners?

Yes, they are hardy and easy to care for, making them suitable for beginners.

Can Sterba's Corydoras be kept with other fish?

Yes, they are peaceful and compatible with other small to medium-sized, non-aggressive fish.