Blue Tetra Care Guide

Knodus borki

Stocking Calculator
Bioload Score

1800

PeacefulEasyFreshwater
Max Size
6.4 cm / 2.5"
Temperature
22–28°C (72–82°F)
pH Range
6.0 – 7.5
Min Tank Size
75L (20 gal)
Min Group Size
6 fish
Tank Level
Bottom-Mid
Origin
South America
Temperament
Peaceful
Difficulty
Easy
Breeding Difficulty
Moderate

Diet

Omnivorous, prefers a varied diet of flake foods, live and frozen foods such as brine shrimp and daphnia.

Community Compatibility

Suitable for community tanks with other small, peaceful fish. Its peaceful nature makes it a good companion for similarly sized tetras, rasboras, and dwarf cichlids.

Good to Know

The Blue Tetra is known for its stunning iridescent blue coloration that shines under proper aquarium lighting, making it a popular choice for adding a splash of color to freshwater tanks.

Gender Differences

Males are generally more slender and vibrant in coloration than females.

Stock Blue Tetra in Your Tank

Use our free stocking calculator to see if Blue Tetra fits your aquarium