Black-Spotted Corydoras (Corydoras melanistius)
The Black-Spotted Corydoras (Corydoras melanistius) is a beautiful and peaceful freshwater catfish known for its silvery body covered in distinct black spots and its characteristic dark eye mask. Native to the rivers and floodplains of Guyana and northern Brazil, this active bottom-dwelling fish is an excellent addition to planted aquariums and community tanks.
Like other Corydoras species, Black-Spotted Corys are highly social and thrive when kept in groups. Their constant foraging behavior, peaceful temperament, and attractive pattern make them a favorite among aquarists looking for an active and engaging bottom-dweller.
Hardy, beginner-friendly, and community-safe, Corydoras melanistius are a great choice for freshwater fish keepers of all experience levels.
Quick Facts
- Scientific Name: Corydoras melanistius
- Common Name: Black-Spotted Corydoras
- Adult Size: 2.5–3 inches
- Temperament: Peaceful
- Care Level: Easy
- Diet: Omnivore
- Lifespan: 5–10 years
- Minimum Tank Size: 20 gallons
- Water Temperature: 72–79°F
- pH Range: 6.5–7.5
- Water Hardness: Soft to Moderate
- Swimming Level: Bottom Dweller
- Schooling Fish: Yes
Why Choose Black-Spotted Corydoras?
✔ Attractive spotted pattern and dark eye mask
✔ Peaceful community fish
✔ Active bottom-dwelling scavenger
✔ Excellent for planted aquariums
✔ Hardy and beginner friendly
✔ Safe with shrimp and snails
Aquarium Setup
Black-Spotted Corydoras thrive in mature aquariums with soft substrate, stable water conditions, and plenty of places to explore.
Recommended setup:
- 20 gallons minimum
- Fine sand or smooth gravel
- Live plants
- Driftwood and caves
- Gentle water flow
- Stable water parameters
- Groups of 6 or more
Fine sand is preferred because it protects their sensitive barbels and allows natural foraging behavior.
Diet & Feeding
Black-Spotted Corys are omnivores and readily accept:
- Sinking pellets
- Corydoras wafers
- Frozen bloodworms
- Brine shrimp
- Daphnia
- Blackworms
- Live foods
- Quality sinking foods
Although they help clean up leftover food, they should be fed directly to ensure proper nutrition.
Tank Mates
Black-Spotted Corydoras do well with:
- Tetras
- Rasboras
- Livebearers
- Gouramis
- Dwarf Cichlids
- Angelfish
- Shrimp
- Mystery Snails
- Other Corydoras species
Avoid aggressive fish or rough substrates that could damage their barbels.
Schooling Behavior
Black-Spotted Corydoras are highly social fish and should always be kept in groups.
Recommended group sizes:
- Minimum: 6 fish
- Ideal: 8–12+ fish
Larger groups encourage natural behavior and help reduce stress.
Frequently Asked Questions
How large do Corydoras melanistius get?
Adults typically reach 2.5–3 inches, making them ideal for community aquariums.
Are Black-Spotted Corydoras peaceful?
Yes. They are gentle, social fish that do well with a wide variety of peaceful tank mates.
What substrate is best for Black-Spotted Corys?
Fine sand or smooth gravel is recommended to protect their delicate barbels.
How many should I keep together?
A group of at least six is recommended, though larger groups are even better.
Do Black-Spotted Corydoras eat algae?
No. They primarily consume leftover food and sinking foods but should not be relied upon for algae control.
Can they live with shrimp and snails?
Absolutely. They are completely safe with shrimp, snails, and other peaceful invertebrates.
Available at Tropical Treasures Wyo
Shop healthy Black-Spotted Corydoras (Corydoras melanistius) at Tropical Treasures Wyo in Cheyenne, Wyoming. These peaceful freshwater catfish are perfect for planted aquariums, community tanks, and hobbyists looking for an attractive and active bottom-dwelling fish.
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