Gold headstander
Anostomus ternetzi
Also known as Ternetz's anostomus, Gold-lined headstander, Ternetzi headstander
Care at a glance
- Temperature
- 73–82°F (23–28°C)
- pH
- 5.5–7.5
- Adult size
- 6.3 in (16 cm)
- Minimum tank
- 53 gal (200 L)
- Temperament
- Mostly peaceful
- Social behavior
- Social
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- No record
- Rarity
- Rare
- Origin
- Native to the Amazon and Orinoco basins and the Guianas in South America.
- Family
- Anostomidae
Overview
Headstanders can be scrappy with their own kind, so either keep a single fish or a larger group of 5 or more to spread out the squabbling, never just two or three. Give a long tank of at least 200 liters with wood, rocks, and open grazing surfaces. It is otherwise peaceful toward other fish and stays busy working over the decor for algae.
In the wild
Lives in flowing rivers and streams, often among rocks, wood, and roots where it grazes algae and small invertebrates. It typically hangs at an angle with its head pointed down, poking into crevices. The water is warm and usually clear to slightly stained.
Good to know
Anostomus ternetzi is a slender headstander reaching around 16 cm, with dark stripes running along a golden body. It swims and rests in a distinctive head down posture. It belongs to the South American family Anostomidae.
Did you know
It spends much of its day angled nose down, using that posture to pick algae and tiny creatures out of cracks in wood and rock.
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Keeping Gold headstander?
Track water tests, reminders and stocking fit.
Related species

Striped headstander
Anostomus anostomus7.5 in (19 cm)70 gal (265 L)68–82°F (20–28°C)
Marbled headstander
Abramites hypselonotus5.5 in (14 cm)70 gal (265 L)68–86°F (20–30°C)
Banded leporinus
Leporinus fasciatus10.6 in (27 cm)40 gal (150 L)68–82°F (20–28°C)
Giant sailfin molly
Poecilia velifera5.9 in (15 cm)30 gal (113 L)75–82°F (24–28°C)
Guenther's Mouthbrooder
Chromidotilapia guentheri5.9 in (15 cm)30 gal (115 L)75–81°F (24–27°C)
Malayan leaf fish
Pristolepis fasciata7.9 in (20 cm)40 gal (150 L)73–82°F (23–28°C)