Blueberry tetra

Hyphessobrycon wadai

Blue-violet flanks, orange-red fins and a dark shoulder mark

Blue-violet iridescence on the flank contrasts with orange-red fins and a dark mark behind the gill cover. A sharply defined long black lateral band is absent.

Adult length: Up to 3.5 cm (standard length, without the tail fin)
Water temperature: 22–28 °C
pH: 5.5–7.5

Natural habitat: Inhabits clear, sandy streams with moderate to rapid current.

Provide conspecific company, cover and uninterrupted swimming space.

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Appearance and identification

Look at the shoulder and tail base together: it has one humeral blotch, without a distinct caudal-peduncle blotch or sharply defined dark lateral stripe. Colour changes with condition and lighting. Blue colour alone does not make it a blue emperor or blue tetra.