Tetra fish has became the common name for various types of small freshwater characiform fish. Native to Africa, Central America, and South America, Tetras belong to the Characidae family, former subfamilies also being Alestidae (the “African tetras”) and Lebiasinidae. The Characidae are distinguished from other fish by the presence of a small adipose fin between the dorsal and caudal fins.


Generally, tetras can live inside variously sized tanks, but they prefer a larger tank which has more space to swim in. Maintaining a good filtration system and changing 10% of the water every week or 25% every 2 weeks will keep them in their optimal environment.

Water conditions:

Tetra from Saigon Aquarium accommodates well to tap water, after chlorine treatment.

Range of pH: 6.5 – 8.0

Water temperature: 26˚C – 28˚C


Tetras accept various types of food, both frozen and live food. They can be fed one or twice per day.


Tetras are peaceful. and stay close to their tank mates of similar size. They thrive the most within a cluster of 6 or more as the social environment makes them less stressed and brings out their brightest colors. Dark substrates and decorations will help to accent their bright coloring. Having a lid on the aquarium helps to prevent them from jumping out if they feel scared or threatened.

Cardinal Tetra

Cardinal Tetra

Cardinal Tetra

Neon Tetra Diamond

Neon Tetra

Rummynose Tetra

Rummynose Tetra

Black Neon TeTra

Hemigrammus Erythrizonus

Pristella Tetra

Serpae Tetra

Hyphessobrycon Bentosi

Black Phamtom Tetra

Nematobrycon Palmeri

Megalamphodus Megalopterus

Hyphessobrycon Pulchripinnis

Gymnocorymbus Ternetzi Skirt Tetra

Gold Skirt Tetra

Long-fin Gold Skirt Tetra

Hasemania Nana

Albino Black Neon Tetra