Corydoras agassizii is a species of catfish that is commonly found in the Amazon basin, particularly in the border region between Peru and Brazil. It prefers to live in tropical waters with a temperature range of 22 - 26 °C, a pH range of 6.0 - 8.0, and a hardness range of 2 - 25 dH.

As per FishBase, this fish species typically measures about 5.2 cm in standard length. Like other members of its genus, it is a shoaling and bottom-dwelling species. It feeds on both plant and animal matter, and its breeding behavior is similar to that of other species. The female holds two to four eggs between her pelvic fins, which are then fertilized by the male. After fertilization, the female lays the sticky eggs, and this process is repeated until about 100 eggs are laid.

Corydoras agassizii is a popular aquarium fish that is commonly available in the pet trade.