Compatibility brief
Can Black ruby barb live with Dwarf Gourami?
Caution. Check the issues below before buying.
Black ruby barb + Dwarf Gourami: Narrow temperature overlap. Black ruby barb and Dwarf Gourami have only a narrow shared temperature range. Maintaining stable water temperature will be important. Outcomes still depend on your tank shape, maintenance routine, and individual fish.
Compatibility score
Profile confidence: medium
Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.
100L
Combined minimum footprint reference for these two species: about 100L (larger active fish often want more length).
Assessment details
Compatible temperaments
Both Black ruby barb and Dwarf Gourami share a peaceful temperament.
Narrow temperature overlap
Top issueBlack ruby barb and Dwarf Gourami have only a narrow shared temperature range. Maintaining stable water temperature will be important.
“Black ruby barb and Dwarf Gourami have only a narrow shared…”
Narrow temperature overlap
Next steps
Concrete changes, not "research more" filler.
- •Black ruby barb should be kept in a group of at least 6 for best health and behaviour.
Try instead
- →Black ruby barb should be kept in a group of at least 6 for best health and behaviour.
- Seriously Fish. Pethia nigrofasciata
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Pethia nigrofasciata
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Pethia nigrofasciata
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
- Wikipedia. Black ruby barb
Overview and range. Cross-check all aquarium numbers against specialist care sheets before buying.
- Seriously Fish. Trichogaster lalius
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Trichogaster lalius
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Trichogaster lalius
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
Try this next
Build the full stocking list with Black ruby barb + Dwarf 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.