The blue corydoras or Natterer's catfish (''Corydoras nattereri'') is a

tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ...

freshwater

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of ...

belonging to the subfamily Corydoradinae of the family

Callichthyidae Callichthyidae is a family of catfishes (order Siluriformes), called armored catfishes due to the two rows of bony plates (or scutes) along the lengths of their bodies. It contains some of the most popular freshwater aquarium fish, such as many ...

. It originates in coastal rivers in

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the sout ...

, and is found in the

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

from

Espírito Santo Espírito Santo (, , ; ) is a state in southeastern Brazil. Its capital is Vitória, and its largest city is Serra. With an extensive coastline, the state hosts some of the country's main ports, and its beaches are significant tourist attra ...

to Paraná. It is named for

Johann Natterer Johann Natterer (9 November 1787 – 17 June 1843) was an Austrian naturalist and explorer. Family and early life Johann Natterer was born on 9 November 1787, the son of the animal-zoologist Joseph Natterer Sr. and Maria Anna Theresia Scho ...

, its discoverer. The fish has clear fins with no pattern. The ventrals are light, opaque yellow. Highlights seen about the gill plates are green. The belly is yellowish. It has a pronounced dark stripe along the length of the body. General color of the body is light, tending towards yellow. Its eyes are gold. It will grow in length up to . It lives in a

climate in water with a 6.0 – 8.0 pH, a water hardness of 2 – 25 dGH, and a temperature range of . It feeds on

worm Worms are many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and no eyes (though not always). Worms vary in size from microscopic to over in length for marine polychaete wo ...

s, benthic

crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can ...

insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three ...

s, and

plant Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclu ...

matter. It lays eggs in dense vegetation and adults do not guard the eggs. The blue corydoras is of commercial importance in the aquarium trade industry.

References

* *

External links

Photos at Fishbase
Corydoras Taxa named by Franz Steindachner Fish described in 1876 {{callichthyidae-stub

See also

References

External links