
Penguin tetra
Thayeria boehlkei · Characidae
Also known as Blackline penguinfish, Hockey stick tetra
Beginner
Swims at a nose-up angle with a black hook down the tail; active and hardy.
- Minimum tank
- 110 L
- Temperature
- 22–28 °C
- pH
- 6–7.8
- Adult size
- 6 cm
- Group size
- 6+
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Sign in to check my tanksCare requirements
- Minimum tank volume
- 110 L
- Temperature
- 22–28 °C
- pH
- 6–7.8
- Hardness
- 3–18 dGH
- Lifespan
- 3–5 years
- Diet
- Omnivore — flake, pellets, frozen foods.
- Care level
- Beginner
Origin & habitat
- Native region
- Araguaia basin, Brazil and Peru
- Water type
- Freshwater
- Biotope
- Slow river margins
- Natural conditions
- Soft to medium water with open swimming space.
Behaviour & stocking
- Temperament
- Peaceful
- Minimum group
- 6 fish
- Swims
- Mid-water
- Good tank mates
- CorydorasRasborasGouramis
- Avoid
- Tiny shrimpAggressive cichlids
Breeding & difficulty
- Breeding difficulty
- Intermediate
- Sexing
- Females are fuller-bodied.
- Notes
- Egg scatterer among fine plants.
- Common ailments
- IchFin rot