Species profile
Neon Tetra
Paracheirodon innesi
Peaceful
Easy care
60 L minimum aquarium
2.5–4 cm adult size
Midwater
Minimum group: 8
About this species
General notes for hobby use.
Small peaceful shoaling tetra. Keep a proper group in a mature aquarium with plants/wood, subdued areas and enough length for coordinated swimming.
Water parameters
Suggested general range for long-term care.
Temperature
20–26 °C
pH
5–7.5
GH
1–12 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
Midwater
Territory level
None
Predation risk
Tiny fry
Bioload factor
0.4
Confidence and natural behaviour improve in larger groups. Avoid large predators, persistent fin-nippers and very warm long-term setups intended for heat-loving species.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Yes
Shrimp safe
Yes
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
60 L
Minimum footprint
60 × 30 cm
Accepted scientific name
Paracheirodon innesi
Alternative names
Neon
Native range
Upper Amazon basin in Peru, Colombia and western Brazil.
Natural habitat
Forest streams and tributaries, often shaded and associated with soft water, woody debris and vegetation.
Diet & feeding
Feed appropriately small quality flakes/micro-pellets with varied tiny frozen/live foods such as daphnia and Artemia.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Females are usually fuller/deeper-bodied when mature; males tend to be slimmer. Colour is not a reliable sex indicator.
Breeding
Egg-scattering species. Spawning is best attempted in soft, acidic, dim water; adults may eat eggs and should be separated from the clutch.