Bloodfin Tetra Care Guide
Aphyocharax anisitsi · Freshwater Fish
What Bloodfin Tetra look like
The Bloodfin Tetra (Aphyocharax anisitsi) exhibits a streamlined, laterally compressed body that reaches a maximum adult size of approximately 5 cm (2 inches). Its coloration is predominantly a solid silver, which provides a striking contrast to the vivid blood-red hue present on all fins, including the dorsal, anal, caudal, and pelvic fins. This species does not exhibit significant sexual dimorphism; however, males may display slightly more vibrant fin coloration during breeding periods. Defensive adaptations include a schooling behavior that reduces individual predation risk, and the presence of a lateral line system that aids in detecting water movements. The dentition is characterized by small, conical teeth suitable for an omnivorous diet, while the presence of an adipose fin contributes to its streamlined swimming efficiency.
Behavior & temperament
Bloodfin Tetras are social fish that thrive in schools, typically exhibiting a hierarchical structure within their groups. They are primarily pelagic, dwelling in the mid to upper water column of their native habitats in Argentina. Breeding behavior is characterized as egg scattering, where females release eggs into the water column for fertilization by males. This species is generally peaceful and exhibits low aggression levels, making them suitable for community tanks. They are active swimmers, often seen darting around the aquarium, which enhances their appeal as a lively addition to a home aquarium.
Diet & feeding
In the wild, Bloodfin Tetras are omnivorous, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, they require a balanced diet consisting of high-quality flake food, supplemented with live or frozen foods such as brine shrimp and daphnia to ensure optimal health and coloration.
Behind the name
Aphyocharax (from Greek 'aphyo' meaning 'thin' and 'charax' meaning 'sharp'), anisitsi (named in honor of the Argentine naturalist Anisits).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Bloodfin Tetra?
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