Dwarf Red Hummingbird Tetra

The Dwarf Red Hummingbird Tetra, scientifically known as Odontocharacidium aphanes, is a rare and captivating freshwater fish species that has garnered attention among aquarists for its delicate size, unique appearance, and lively behavior. Native to the slow-moving streams and shallow waters of South America, particularly in regions of the Amazon Basin, this tiny tetra brings a touch of elegance and subtle beauty to specialized nano aquariums.

Physically, the Dwarf Red Hummingbird Tetra is a very small fish, typically reaching only about 0.6 to 0.8 inches (1.5 to 2 centimeters) in length. Despite its diminutive size, it is a striking fish, with a translucent body that can display a faint pink or reddish hue under the right lighting conditions. One of the most distinguishing features of this species is its large, expressive eyes, which give it an endearing and curious appearance. The fins are delicate and nearly transparent, adding to the overall graceful and almost ethereal look of the fish.

In aquariums, the Dwarf Red Hummingbird Tetra thrives in well-maintained, heavily planted tanks with gentle water flow. These fish are best suited to nano aquariums or specialized setups where they can be kept in small groups. Because of their small size, it is important to house them with similarly sized and non-aggressive tank mates to avoid stress and ensure their well-being. Floating plants and dense vegetation help provide cover and create a more natural environment, which can enhance their coloration and reduce stress.

Water parameters for the Dwarf Red Hummingbird Tetra should closely mimic those of their natural environment. They prefer slightly acidic to neutral water with a pH range of 5.5 to 7.0 and temperatures between 72 to 79°F (22 to 26°C). Regular water changes and careful maintenance are crucial, as these delicate fish are sensitive to fluctuations in water quality.

Feeding the Dwarf Red Hummingbird Tetra can be a bit challenging due to their small size and specific dietary needs. They are micropredators, primarily feeding on tiny invertebrates in the wild. In captivity, they will thrive on a diet of live or frozen foods such as micro-worms, daphnia, and baby brine shrimp. Offering appropriately sized foods is essential to keep them healthy and maintain their subtle coloration.

Breeding the Dwarf Red Hummingbird Tetra in captivity is rare and can be difficult due to their small size and specific requirements. If breeding is attempted, it’s best to set up a separate breeding tank with soft, acidic water and fine-leaved plants or spawning mops. The eggs are tiny and delicate, and the fry, once hatched, require microscopic foods like infusoria or freshly hatched brine shrimp to survive.

Overall, the Dwarf Red Hummingbird Tetra (*Odontocharacidium aphanes*) is a unique and fascinating addition to specialized freshwater aquariums, prized for its delicate beauty, peaceful nature, and intricate behavior. With proper care and attention to their specific needs, these tiny fish can thrive and bring a touch of subtle elegance and charm to experienced aquarists, enhancing the diversity and serenity of any aquatic environment.