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Compatibility

Compatibility brief

Can Harlequin Rasbora live with Pearl Gourami?

Harlequin Rasbora

Harlequin Rasbora

Trigonostigma heteromorpha

peaceful~5cm
Pearl Gourami

Pearl Gourami

Trichopodus leerii

peaceful~12cm
VerdictGOOD

Often a workable match in a suitable, well-run tank. Still verify behaviour in your setup.

Classic peaceful community pairing. Harlequins shoal mid-water, pearl gourami glides above. Same temperament tag, same general water preferences, no conflict. Success still depends on tank size, stable water, and the actual fish you buy.

Compatibility score

100/100

Profile confidence: high

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

Min tank

100L

Combined minimum footprint reference for these two species: about 100L (larger active fish often want more length).

Temperature
Range in °C24–27°C shared
Harlequin RasboraPearl GouramiShared window
pH
Range6–7.5 shared
Harlequin RasboraPearl GouramiShared window

Assessment details

  1. Known compatible pairing

    Classic peaceful community pairing. Harlequins shoal mid-water, pearl gourami glides above. Same temperament tag, same general water preferences, no conflict.

  2. Compatible temperaments

    Both Harlequin Rasbora and Pearl Gourami share a peaceful temperament.

  3. Compatible temperature range

    Both fish can comfortably share similar water temperatures.

Next steps

Concrete changes, not "research more" filler.

  • •Harlequin Rasbora should be kept in a group of at least 6 for best health and behaviour.
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 Harlequin Rasbora + Pearl Gourami

Compare another pairOpen tank builder

Plan further

Check each species’ mates list, size the glass, then verify the full stock in the builder. 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. Checked against several solid care sources that mostly agree.

Full tank-mate guides

Related pair checks

Other tank mates for Harlequin Rasbora

Harlequin Rasbora + Pearl Gourami — common questions

Can Harlequin Rasbora live with Pearl Gourami?
Usually, yes. The pairing resolves GOOD in Fishori's checks for a tank of about 100 litres or more with the shared water windows shown on this page. Individual fish still vary, so watch the first weeks closely.
What tank size do you need for Harlequin Rasbora and Pearl Gourami together?
Plan around 100 litres as the working minimum. That figure comes from each species' published minimum and their group needs, and it assumes adult sizes, not shop sizes.
What should you check before buying?
Harlequin Rasbora should be kept in a group of at least 6 for best health and behaviour.