Photo identification · reviewed 2026-07-31

Ember tetra vs chili rasbora

These tiny red fish separate through body depth and the chili rasbora's dark lateral marking.

Interactive observation guide

Inspect one clue at a time

Use the photographs above, then select each clue. Do not make an identification from one feature alone.

Ember tetras are deeper-bodied, with a compact tetra silhouette and more even amber-orange colour.

Care reality check

Compare the adult requirements

A visual identification changes which limits you should plan around.

RequirementEmber tetraChili rasbora
Adult size1.5–2 cm1.5–2 cm
Minimum tank45 L · 45 cm35 L · 45 cm
Temperature23–29°C22–28°C
pH5–74–7
GH1–10 dGH1–8 dGH
Social minimum1010
Temperamentpeacefulpeaceful

Visible differences

Clues to inspect

  1. Ember tetras are deeper-bodied, with a compact tetra silhouette and more even amber-orange colour.
  2. Chili rasboras are slimmer and usually show a dark lateral stripe or elongated blotch beneath vivid red.
  3. The dorsal and anal fins of a displaying male chili often carry stronger contrasting marks.

Shared traits

Why they are confused

  • Both are minute peaceful shoalers suited only to gentle companions.
  • Both look best and behave more naturally in a generous group with cover.

Why it matters

Do not stop at the name

Their minimum water chemistry and maturity needs differ; a nano label is not a complete care plan.

Uncertainty

When a photo is not enough

Females, juveniles and stressed specimens can be pale. Macro photography can also exaggerate apparent body size.

Still unsure?

Upload a clear side-on photograph.

The identifier returns a confidence-labelled catalogue match, then links you back to reviewed profiles.

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