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Compatibility

Compatibility brief

Can Ember Tetra live with Opaline gourami?

VerdictRISKY

Risky. This mix is commonly discouraged for typical setups.

Ember Tetra + Opaline gourami: Opaline gourami may eat Ember Tetra. Opaline gourami (15cm) is predatory and Ember Tetra (2cm) is small enough to be eaten. This pairing is unsafe. Real tanks add variables Fishori cannot model; treat this as a high-risk read, not certainty.

Compatibility score

30/100

Profile confidence: medium

Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.

Min tank

150L

Combined minimum footprint reference for these two species: about 150L (larger active fish often want more length).

Temperature
Range in °C2228°C shared
Ember TetraOpaline gouramiShared window
pH
Range67 shared
Ember TetraOpaline gouramiShared window
Size / predation

Opaline gourami (15cm adult) may treat small Ember Tetra (~2cm) as food once grown — plan adult sizes, not shop sizes.

Temperament / behaviour

Temperament gap (peaceful vs semi-aggressive) — can work with space, structure, and careful observation, but not a “drop and forget” mix.

Assessment details

  1. Temperament difference

    Opaline gourami is semi-aggressive, while Ember Tetra is peaceful. This can work with adequate space and hiding spots, but monitor for bullying.

  2. Opaline gourami may eat Ember Tetra

    Top issue

    Opaline gourami (15cm) is predatory and Ember Tetra (2cm) is small enough to be eaten. This pairing is unsafe.

  3. Compatible temperature range

    Both fish can comfortably share similar water temperatures.

Opaline gourami (15cm) is predatory and Ember Tetra (2cm) is…

Opaline gourami may eat Ember Tetra

Next steps

Concrete changes, not "research more" filler.

  • Provide plenty of hiding spots and visual breaks so Ember Tetra can escape if harassed.
  • Ember Tetra should be kept in a group of at least 8 for best health and behaviour.

Try instead

  • Provide plenty of hiding spots and visual breaks so Ember Tetra can escape if harassed.
  • Ember Tetra should be kept in a group of at least 8 for best health and behaviour.
  • Build a species-only tank for the larger fish, or restock with fish too large to be eaten at adult sizes.
Sources from both profiles
Only URLs that exist on the species records are shown. We do not fabricate citations.

Try this next

Build the full stocking list with Ember Tetra + Opaline gourami

Plan further

Try both species in the full-stock tank check, or open either fish profile for mates lists. Methodology explains how verdicts are produced.

Individual fish vary in personality. Fishori uses conservative hobby rules. Observe any new introduction closely, feed thoughtfully, and keep a quarantine or backup plan. This is not veterinary advice.

Profile data confidence: high. Based on multiple reputable aquarium care sources with strong agreement.