Compatibility directory

Neon Tetra and Oscar compatibility

Likely incompatible

Compare these records as a starting point, then account for the actual tank, group size, individual behavior, hiding space, diet, and current health.

Neon Tetra

Paracheirodon innesi
Temperature
70–81°F
pH
6–7
Minimum tank
10 US gal
Temperament
Peaceful

Oscar

Astronotus ocellatus
Temperature
74–81°F
pH
6–8
Minimum tank
75 US gal
Temperament
Aggressive
Compatibility signals
  • Tight hardness overlap
  • Oscar can eat Neon Tetra
  • Temperament conflict: peaceful + aggressive
  • Territorial species sharing same swim level
  • Large size disparity with non-peaceful fish
Catalog provenance

Built from immutable TankForge catalog IDs. Source confidence: high / medium. See the catalog methodology before making a stocking decision.