Spotted Corydoras

Corydoras melanistius

Photo of aquarium fish Spotted Corydoras
Natural range
  • Guiana Shield area
  • Brazil
  • French Guiana
  • Guyana
  • Suriname
Corydoras Conservation status: Least concern LC

Family:Armored Catfish (Callichthyidae)

Other scientific names: Corydoras wotroi

Corydoras melanistius, also known as the Spotted Corydoras or Black Sail Corydoras, belongs to the family Callichthyidae. These fish are native to northeastern South America, specifically the coastal regions of Guyana, Suriname, and French Guiana. Their natural habitat includes slow-flowing waters, ponds, backwaters, and tributaries of larger rivers. It is important to note that despite inhabiting coastal areas, this species is not adapted to brackish or saltwater.

Required aquarium volume
from 100 L
Size in aquarium
5 – 6 cm
Temperature
22 – 26 °C
Temperament
Peaceful (regular)
Parameters
Temperature22 – 26 °C
Water pHSlightly acidic (6) – Neutral (7)
Water dHVery soft (2) – Hard (15)
Water salinityno salt (freshwater)
Size in aquarium5 – 6 cm
Lifespan5 years
TemperamentPeaceful (regular)
Toward small fishnot a predator
Required aquarium volumefrom 100 L
Lightingdimmed or moderate
Substratesandy (regular, light)
Water flowweak or moderate
Swimming levelnear the bottom
FeedingSinking (any)
KeepingMedium group

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does Spotted Corydoras get?

An adult reaches 5–6 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Spotted Corydoras need?

The recommended volume is 100 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Spotted Corydoras need?

Temperature 22–26 °C, pH 6–7, hardness 2–15 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Spotted Corydoras live?

Around 5 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is Spotted Corydoras aggressive?

Temperament: peaceful (regular). Keep this in mind when choosing tank mates.

How many Spotted Corydoras should be kept together?

Recommended setup: medium group (6–8 individuals). Ignoring this is a common cause of stress and disease.

What does Spotted Corydoras eat?

Diet type: sinking (any). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Spotted Corydoras?

The scientific name of the species is Corydoras melanistius, family Armored Catfish (Callichthyidae). It also appears in the literature as: Corydoras wotroi.

Plants and this fish

Similar fishes

Matched by family, categories and overlapping keeping conditions

Pigmy Corydoras
Pigmy Corydoras
Armored Catfish (Callichthyidae)

Corydoras delphax

Corydoras delphax, also known as the Pigmy Corydoras, bears the scientific name Corydoras delphax. Scientists may have given this catfish such a name due to its habit of actively rooting in the substrate with its nose…

Corydoras condiscipulus
Corydoras condiscipulus
Armored Catfish (Callichthyidae)

Corydoras condiscipulus

Corydoras condiscipulus, or the Condiscipulus Catfish (scientific name Corydoras condiscipulus), belongs to the family Callichthyidae, known as armored or callichthyid catfishes. The name itself comes from the Latin…

Corydoras virginiae
Corydoras virginiae
Armored Catfish (Callichthyidae)

Corydoras virginiae

Corydoras virginiae, scientifically known as Corydoras virginiae, belongs to the family Callichthyidae — armored or callichthyid catfishes. This name was given to the fish in honor of Virginia Schwarz, wife of Adolf…

Gomez's Corydoras
Gomez's Corydoras
Armored Catfish (Callichthyidae)

Corydoras gomezi

The scientific name Corydoras gomezi was given to this species of fish, belonging to the family of armored, or callichthyid, catfishes. It was named in honour of Dr Juan A. Gomez. These wild catfishes inhabit the upper…

rev. 1c927ce© Aquario 2024-2026Create by VR9