Species profile
Giant Gourami
Osphronemus goramy
Semi aggressive
Hard care
1,200 L minimum aquarium
45–70 cm adult size
All levels
Can be kept singly
About this species
General notes for hobby use.
A genuinely giant labyrinth fish. The 1,200 L recommendation is a practical minimum envelope for a single adult, not a claim that the species is a normal home-community gourami.
Water parameters
Suggested general range for long-term care.
Temperature
20–30 °C
pH
6.5–8
GH
5–25 dGH
KH
Not yet documented
Flow preference
Low–moderate
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Can be kept singly
Tank zone
All levels
Territory level
High
Predation risk
Small fish
Bioload factor
8
Intelligent and individually variable. Adults may become strongly territorial and can injure smaller or incompatible tankmates. Plan for a single specimen unless housing is exceptionally large.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Caution
Shrimp safe
No / caution
Snail safe
No / caution
Cave breeder
No
Digs substrate
Yes
Jump risk
Yes
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
20–25 years
Diet type
Omnivore
Minimum aquarium volume
1,200 L
Minimum footprint
240 × 90 cm
Accepted scientific name
Osphronemus goramy
Alternative names
Giant Gourami
Native range
South-east Asia; native range centred on Sundaic and mainland tropical regions, with widespread introductions.
Natural habitat
Large lowland rivers, lakes, swamps and slow vegetated waters. Captive adults need huge turning space, powerful filtration and sturdy decor, with calm zones and unrestricted surface access.
Diet & feeding
Omnivore with a substantial plant component. Use complete large-fish foods, vegetables/leafy plant material, fruit in moderation and suitable invertebrate foods. Avoid fatty mammalian meat.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Adult males can develop a more pronounced forehead and thicker lips; reliable sexing of juveniles is difficult.
Breeding
Large bubble-nest builder. Breeding requires enormous space; the male constructs and guards a substantial nest of plant material at the surface.