Species profile
Bleeding Heart Tetra
Megalamphodus erythrostigma
Semi aggressive
Moderate care
120 L minimum aquarium
5–7 cm adult size
Mid lower
Minimum group: 8
About this species
General notes for hobby use.
Relatively large, deep-bodied tetra. Keep a substantial group and avoid tiny fish or slow long-finned tankmates.
Water parameters
Suggested general range for long-term care.
Temperature
23–28 °C
pH
5.5–7
GH
Up to 12 dGH
KH
Not yet documented
Flow preference
Low–moderate
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Minimum group: 8
Tank zone
Mid lower
Territory level
Low
Predation risk
Small fish
Bioload factor
1
Males compete and display within the shoal. A large group and spacious aquarium reduce harassment.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
Yes / caution
Plant safe
Yes
Shrimp safe
No / caution
Snail safe
Yes
Cave breeder
No
Digs substrate
No
Jump risk
Yes
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
Not yet documented
Diet type
Omnivore
Minimum aquarium volume
120 L
Minimum footprint
90 × 40 cm
Accepted scientific name
Megalamphodus erythrostigma
Alternative names
Bleeding Heart Tetra, Hyphessobrycon erythrostigma
Native range
Upper Amazon basin of South America.
Natural habitat
Soft, acidic forest waters with plant/wood structure and subdued conditions.
Diet & feeding
Feeds on worms, crustaceans and plant material; use varied prepared foods and small frozen/live invertebrates.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Males develop more extended dorsal/anal fins and are often slimmer; females are fuller-bodied.
Breeding
Non-guarding egg scatterer; adults may consume eggs.