Colombian Redfin Tetra (Hyphessobrycon columbianus), blue-red Colombian tetra,

The Colombian redfin tetra (Hyphessobrycon columbianus), also known as the blue-red Colombian tetra, is a vibrant freshwater fish popular in home aquariums for its striking turquoise-blue body and bright scarlet-red fins.

Appearance and Behavior

Coloration: Silvery-grey bodies with a brilliant turquoise-blue sheen that grows more intense near the top. Fins are bright red, though the color can look dull if the fish is resting or stressed.

Temperament: Generally active and peaceful, but they can be somewhat nippy or boisterous toward smaller or slow-moving fish with long fins.

Schooling: They are social shoaling fish and must be kept in groups of at least 6 to 10 individuals to minimize aggression and shyness.