- Group: Freshwater
- Size: Small
- Temperament: Community
- Swimming Region(s): Bottom
- Suitable Tank Mates: Other Corydoras, Gouramis, Characins, Livebearers
- Difficulty Of Care: Weekly
The name Corydoras is given to species belonging to the armored catfish family within the subfamily Corydoradinae. Also known as cories or cory catfish, Corydoras catfish are generally docile fish that do well in a community setting. These catfish are bottom feeders and they are best kept in groups with six or more of their own species.
Corydoras catfish are generally docile fish that do well in a community setting.
Different species of Corydoras catfish can be found in different areas, but most are distributed throughout South America. These fish tend to inhabit quiet, slow-moving waters where the bottom is heavily planted or covered with mud and detritus.
Corydoras catfish come in a variety of colors and patterns, though most exhibit some combination of black, gray, or brown in their coloration. Many Corydoras species exhibit spots or bars of color on their bodies and fins, though there are albino variations of several species as well.
Maintenance and Care
Because these catfish come from the tropical regions of South America they prefer warm, slightly hard water with a pH between 6.0 and 8.0 as well as a water hardness level between 5 and 19 dGH. The ideal temperature range for Corydoras is between 68°F and 82°F. These fish prefer planted tanks with plenty of hiding places available, especially broad-leafed plants for spawning. Corydoras catfish are fairly hardy and easy to keep with other community species, though they do not do well in tanks with high nitrate levels and hard substrate should be avoided so they do not damage their barbels.
Corydoras catfish come in a variety of colors and patterns.
Corydoras catfish are bottom feeders and scavengers that will feed on various types of detritus including decomposing plant material and uneaten fish food. These fish will also eat small insects and crustaceans as well. In the home aquarium, Corydoras catfish should be fed sinking wafers or pellets as well as some live and frozen foods as a supplementary diet.
Sexing Corydoras catfish can be tricky but females tend to be larger and more full-bodied than males. All Corydoras catfish are egg-layers and they tend to deposit their eggs on flat surfaces such as rocks, plant leaves, and the walls of the tank. Corydoras can sometimes be encouraged to spawn by systematically lowering the tank temperature by a few degrees over the course of several days to simulate the rainy season.
There are more than 150 species of Corydoras catfish but some of the most popular species for the home aquarium include Aldofo’s Corydoras, Bronze Corydoras, Skunk Corydoras, Sterba’s Corydoras, Emerald Corydoras, Pygmy Corydoras, Panda Corydoras, Peppered Corydoras and Albino Bronze Corydoras.
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