Scientific Name: Corydoras sp.
Common name: Cory
Type: Fresh water fish
Origin zone: South America
Max length: 7 cm
Temperature: 22 - 28 C
pH: 6 - 7
gH: 5 - 8
The Corydoras genus includes 145 species of freshwater fish belonging to the family Callichthyidae, all common in freshwater rivers of South America.
The name comes from the Greek words korus (helmet) and dora (skin), in clear reference to the bony plates that reinforce the sides of the fish.
Sizes range from 3 to 15 cm depending on the species.
A typical characteristic of this genre is the ability to integrate the lack of dissolved oxygen in the water with atmospheric oxygen through an evolution of the intestine: in fact this turns out to be remarkably vascularized organ, which enables the fish to ingest air with the mouth doing a characteristic swim toward the outer surface of the water, and then use it to oxygenate the blood. The carbon dioxide is expelled from the anus.
Corydoras in the aquarium inhabit the bottom of the tank, so this fish are considered "scavengers". Beware, though: this does not mean that they feed the droppings of other fish, but simply that they tend to pick up food from the bottom, such as food not eaten by fish that inhabit the upper levels.
If you breed these fish always check they eat. Possibly supplement the diet with vegetable bottom food, or blanched vegetables (eg . zucchini, carrots).
For more detailed information please refer to the specific cards in this database.
Information contributed by: Fish Tank Lab Staff
FTL ID: 838
Last update: 2014-10-03 16:18:21
NotesThe minimum size of the tanks shown are intended, depending on the species considered, for a single individual, a couple or the smaller group of individuals for schooling fish. Depending on fish temper, territoriality, or vivacity, breeding with other animals of the same species or different species may require larger tanks.
Main picture usually shows adults. Depending on the age and sex, there may be significant variations in the color of the specimens.
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