The Pygmy Cory, also known as the Pygmy Catfish or Pygmy Corydoras, is a small freshwater fish that is native to the rivers and streams of South America, particularly in the Amazon basin. It is a member of the Corydoras genus, which is a group of bottom-dwelling fish that are known for their attractive appearance and interesting behavior.

As the name suggests, the Pygmy Cory is a very small fish, typically reaching a length of only 1 inch (2.5 cm) when fully grown. It has a distinctive pattern of dark spots on a light background, which helps it to blend in with its surroundings and avoid predators. Its fins are relatively small and unobtrusive, making it an attractive and unassuming addition to any aquarium.

In terms of care, the Pygmy Cory is a hardy species that can adapt to a range of water conditions, but prefer slightly acidic water with a pH between 6.0 and 7.0. They are also very social fish and should be kept in groups of at least six individuals to promote their natural behavior and reduce stress.

In terms of diet, the Pygmy Cory is an omnivore and will eat a variety of foods, including flakes, pellets, and frozen or live foods such as bloodworms and brine shrimp. They are bottom-dwellers and will spend much of their time scavenging for food in the substrate, so it's important to provide them with a soft, sandy substrate that won't damage their delicate barbels.

One unique aspect of the Pygmy Cory is its interesting behavior. They are known to be active and playful, often darting around the aquarium and engaging in playful games with other fish. They are also known to be quite vocal, producing a series of clicks and pops as they communicate with each other.

Overall, the Pygmy Cory is a peaceful and attractive fish that is well-suited to community aquariums. It is active, friendly, and relatively easy to care for, making it a popular choice among aquarium enthusiasts of all skill levels.