Penguin Tetra: The Unique Oblique Swimmer for Your Aquarium

Add fascinating movement and unique character to your community tank with the charming Penguin Tetra (*Thayeria boehlkei*). Their distinctive swimming style and bold stripe make them a standout!

Overview

The Penguin Tetra, also known as the Blackline Penguinfish, features a sleek, silvery body adorned with a prominent black stripe that extends from its caudal fin towards its gill plate. What truly sets this species apart is its characteristic oblique, head-up swimming posture, giving it a playful “penguin-like” appearance. These active and lively fish are known for their tight schooling behavior, creating a dynamic and captivating display as they gracefully navigate your aquarium, particularly in the mid to upper water column.

Care Level

Considered easy to moderate to care for, the Penguin Tetra is a peaceful and highly adaptable species, making it suitable for aquarists of various experience levels. They thrive in groups of at least six, preferably ten or more, which minimizes potential nipping tendencies and encourages their natural schooling behavior. They are excellent community fish, compatible with other peaceful, similarly sized tankmates.

Tank Essentials

A minimum of 70 litres is recommended for a small group of Penguin Tetras to provide ample swimming space. They are highly adaptable to water chemistry but appreciate clean, stable conditions. Maintain a temperature range of 22-28°C and a pH between 5.5-8.0. A well-planted aquarium with open swimming areas, darker substrate, and some floating plants will mimic their natural habitat and enhance their coloration.

Diet

As omnivores and micropredators, Penguin Tetras readily accept a varied diet. Offer high-quality flake foods, micro pellets, and granules. Supplement with small live or frozen foods such as bloodworms, Daphnia, and brine shrimp to ensure optimal health and vibrant colors.

Why Buy From Us

When you buy Penguin Tetra online from us, you’re choosing healthy aquarium fish responsibly sourced and humanely shipped. We prioritize the well-being of our aquatic life, ensuring they arrive vigorous and ready to thrive in your home aquarium. Our commitment to quality means you receive robust specimens, backed by expert advice for successful fishkeeping.

Scientific Name: Thayeria boehlkei
Common Name / Variant: Penguin Tetra
Maximum Size: 6-7 cm
Origin: Upper Amazon Basin (Peru), Rio Araguaia (Brazil) (most are captive-bred)
pH Range: 5.5–8.0
Temperature: 22–28°C
Lifespan: 3–5 years
Swimming Zone: Mid / Top

Bring the lively charm of the Penguin Tetra to your tank today!

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