Corydoras, or "Cory" Catfish are a large group of South American armored catfish. There are over 70 species of Corydoras Catfish, all similar in size and all requiring the same care. They are small, ranging in size from 1-3 inches in length. Due to their tireless scavenging, Corydoras Catfish are most often used as "cleaner" fish for the aquarium. It is recommended to keep these fish in groups of four or more. Mixing species is fine.

Tank Setup

Being the small fish that they are, Corydoras need only a small aquarium of 10-15 gallons. Polished gravel works best, as these fish are prone to injuring their mouths on sharp and jagged rocks while digging for food. A sandy substrate is appreciated. Bunched and floating plants are beneficial.

Feeding

As omnivorous bottom-feeders, these Catfish should be fed foods such as blood worms, sinking tablets or finely-chopped beef heart. Vegetable matter such as blanched lettuce should also be supplied in their regular diet. It is not recommended to leave your Corydoras to simply eat the leftover "scraps".

Water Chemistry

These Catfish have no special requirements when it comes to water conditions. A neutral pH and common water temperature will suffice. They are hardy fish that thrive under most conditions. Certain species can live in temperatures as low as 59 degrees F.

Breeding

Females are larger than males and may have more blunt dorsal fins than those of the males. It is recommended to keep 2 males for each 1 female when attempting to spawn these Catfish. A designated aquarium works well. After a week or two in their usual water conditions, drop the temperature below 70 degrees F and soften the water. Feed the fry sinking foods such as Tetra Bits.