Bleeding heart tetra

Photo: 5snake5, CC0, via Wikimedia Commons

Characidae

Bleeding heart tetra

Hyphessobrycon erythrostigma

peacefulshoal

6 cm

Adult size

140 L

Minimum volume

8

Minimum group

5 years

Lifespan

Water parameters

Understand these values
pH5.6 – 7.2
49
Hardness (GH)8 – 12°
0°30°
Temperature23 – 28°C
18°C32°C
Genus
Hyphessobrycon
Diet
omnivore
Social life
shoal

In the wild

Overview

Described in 1943 by Henry W. Fowler, the bleeding heart tetra owes its name to the bright red spot on its flank, behind the gill cover; erythrostigma comes from the Greek for “red mark”. This red humeral spot exists in no other characin apart from two closely related species (H. socolofi and H. pyrrhonotus).

The classification revised in 2024 places it in the genus Megalamphodus. At over 6 cm, it is one of the largest tetras in its group.

Scientific name
Megalamphodus erythrostigma (Fowler, 1943)Current valid name; in the hobby: Hyphessobrycon erythrostigma
Classification
Characiformes › Acestrorhamphidae
IUCN Red List
Least concern (LC)

Natural habitat

Upper Amazon, Brazil–Peru–Colombia tri-border region, from the Rio Purus to the Río Nanay

Observations (GBIF) and localities Native countries Rivers and lakes

It lives in the upper Amazon basin, in the region where the borders of Brazil, Peru and Colombia meet, from the Rio Purus to the Río Nanay basin near Iquitos.

It frequents slow tributaries, side channels and forest lakes, near roots, fallen branches, overhanging vegetation or aquatic plants. The water, very low in minerals and stained brown, can drop below pH 4: in some igarapés, measurements found a pH of 3.8 to 6.4 and oxygen-poor water.

Behaviour

Generally peaceful, it suits a well-planned community aquarium, but adult males defend a small territory. Their displays, with dorsal, pelvic and anal fins spread, are spectacular; a mixed group of at least 8 to 10 makes it possible to watch them.

An opportunistic omnivore, in the wild it feeds mainly on fruit fallen into the water, supplemented by insects and their larvae. It is an egg scatterer that does not care for its eggs.

Sources:FishBase Seriously Fish GBIF · Base map: Natural Earth

Bleeding heart tetra · Aquarius