Species

Allen's rainbowfish

Chilatherina alleni

moderatepeacefulmiddle swimmerMelanotaeniidae
Add 6 to my tank
Allen's rainbowfish
Tank length
90 cm35 in
Group
6+
Temperature
24–30 °C75–86 °F
pH
7.2–7.6
Adult size
6 cm2 in
Lifespan
4–8 yrs

An active open-water shoaler; keep a group of at least six in a long, well-filtered tank with swimming space.An active open-water shoaler; keep a group of at least six in a long, well-filtered tank with swimming space.

Tank sizes

Good tankmates

None recorded.

Avoid with

Data used by the planner
Temperature24–30AqAdvisor (aqadvisor.com), retrieved 2026-10-04 · medium confidence
pH7.2–7.6AqAdvisor (aqadvisor.com), retrieved 2026-10-04 · medium confidence
Hardness (dGH)5–15AqAdvisor (aqadvisor.com), retrieved 2026-10-04 · medium confidence
OriginNorthern western New Guinea, Indonesiacurated-v0 (needs expert review) · low confidence
Beginner friendlyNocurated-v0 (needs expert review) · medium confidence
Care levelmoderatecurated-v0 (needs expert review) · medium confidence
Activityactivecurated-v0 (needs expert review) · medium confidence
Swimming levelmiddlecurated-v0 (needs expert review) · medium confidence
Temperamentpeacefulcurated-v0 (needs expert review) · medium confidence
Nips finsNocurated-v0 (needs expert review) · medium confidence
Long finsNocurated-v0 (needs expert review) · medium confidence
TerritorialNocurated-v0 (needs expert review) · medium confidence
Lives in groupsYescurated-v0 (needs expert review) · medium confidence
Minimum group6curated-v0 (needs expert review) · medium confidence
Dietomnivorecurated-v0 (needs expert review) · medium confidence
Lifespan (years)4–8curated-v0 (needs expert review) · low confidence
Months to adult size12curated-v0 (needs expert review) · low confidence
Safe with plantsYescurated-v0 (needs expert review) · medium confidence
Minimum tank length90curated-v0 (needs expert review) · medium confidence