Moenkhausia costae, commonly known as the Blackline Tetra, is a captivating freshwater fish originating from South America. Belonging to the Characidae family, this species is highly regarded in the aquarium hobby for its attractive appearance and peaceful demeanor. The Blackline Tetra is characterized by a streamlined body adorned with subtle yet enchanting stripes that run along its sides, adding a touch of elegance to its overall presentation. Typically reaching a size of around 5 to 6 centimeters, these tetras are well-suited for community tanks and are known for their sociable behavior, often forming schools for a more dynamic aquarium display. Hardy and adaptable, the Blackline Tetra thrives in well-maintained aquariums, making it a popular choice among aquarists looking to add both visual appeal and tranquility to their freshwater setups.
