Overview

Distribution

South America: Madeira River basin.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Madeira River basin, Brazil.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Physical Description

Size

Maximum size: 25 mm TL
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Max. size

2.1 cm SL (male/unsexed; (Ref. 37395))
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Ecology

Habitat

Environment

demersal; freshwater; pH range: 6.0 - 8.0; dH range: 2 - 25
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Life History and Behavior

Life Cycle

The female holds 2-4 eggs between her pelvic fins, where the male fertilizes them for about 30 seconds. Only then the female swims to a suitable spot, where she attaches the very sticky eggs. The pair repeats this process until about 100 eggs have been fertilized and attached (Ref. 1672).
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Corydoras pygmaeus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 3
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Conservation

Threats

Not Evaluated
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest; aquarium: commercial
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Wikipedia

Pygmy corydoras

General information[edit]

The pygmy corydoras or pygmy catfish, Corydoras pygmaeus, is a tropical and freshwater fish belonging to the Corydoradinae sub-family of the Callichthyidae family. It originates in inland waters in South America, and is found in the Madeira River basin in Brazil. The fish will grow in length up to 0.75 inches (2.1 centimeters) with females being larger than the males. It lives in a tropical climate in water with a 6.0 - 8.0 pH, a water hardness of 2 - 25 dGH, and a temperature range of 72 - 79°F (22 - 26°C). It feeds on worms, benthic crustaceans, insects, and plant matter.

Breeding[edit]

It lays eggs in dense vegetation and adults do not guard the eggs. The female holds 2-4 eggs between her pelvic fins, where the male fertilizes them for about 30 seconds. Only then does the female swim to a suitable spot, where she attaches the very sticky eggs. The pair repeats this process until about 100 eggs have been fertilized and attached.

In the Aquarium[edit]

Pygmy corydoras are of commercial importance in the aquarium trade industry.

It is a peaceful fish and can be kept in a community aquarium of smaller fish species such as ember tetras. It can be fed most sinking foods but may eat flakes. It enjoys frozen food and sinking wafers. It can be kept with small shrimp and snails. These cories should't be kept in tanks smaller than 10 gallons because they like room to swim around. Used fine grained substrate or their little barbels may wear down. Keep the temperature between 70 and 80 degrees Fahrenheit with a pH of 6.0 - 7.5.

They are peaceful fish and like to live in groups of at least four and will also behave much more naturally in larger groups (10 or more). Unlike the larger more common Corydoras, they often swim in a shoal around mid water regions as well as the lower regions of the tank.

C. pygmaeus are good pets as they are fairly hardy. However, there are several things to keep in mind when planning to keep this species. They are inoffensive fish which will not thrive with aggressive tankmates. They are perhaps best kept in a planted species tank, or with shrimp such as Neocaridina spp. They seem to do best when offered live foods in addition to prepared food items. Appropriate foods include microworms or similar nematodes, as well as Artemia nauplii (newly hatched brine shrimp.)

See also[edit]

Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Average rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!