Siamese fighting fish
Betta splendens
Osphronemidae
Moderate
Parameter dashboard
Temperature
24-30 °C
pH
6-8
Size
6.5 cm
Lifespan
3 years
Min tank15 L
Price$$$
DietOmnivore
TemperamentAggressive
OriginAsia
Shrimp-safeNo
Care guide
Betta splendens requires a tank size of at least 15L with temperatures between 24.0-30.0°C and pH levels between 6.0-8.0.
Tankmate compatibility (sample)
Pairwise screening against other species in the database (prioritizing the same family when data is available).
Review first (8)
Caution or avoid from automated rules — confirm before mixing.
| Species | Assessment | Notes |
|---|---|---|
| Chocolate gourami Sphaerichthys osphromenoides Caution | Caution | Species with non-overlapping pH ranges may not thrive together Open pair in Compare → |
| Crescent betta Betta imbellis Caution | Caution | Multiple territorial species in the same swim layer cause stress Open pair in Compare → |
| Dwarf gourami Trichogaster lalius Caution | Caution | Multiple territorial species in the same swim layer cause stress Open pair in Compare → |
| Honey gourami Trichogaster chuna Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Siamese fighting fish Betta splendens var. Caution | Caution | Multiple territorial species in the same swim layer cause stress Open pair in Compare → |
| Snakehead Betta Betta channoides Caution | Caution | Fish 2x+ larger may eat smaller tankmates · Multiple territorial species in the same swim layer cause stress Open pair in Compare → |
| Three spot gourami Trichogaster trichopterus Caution | Caution | Fish 2x+ larger may eat smaller tankmates · Multiple territorial species in the same swim layer cause stress Open pair in Compare → |
| White Seam Betta Betta albimarginata Caution | Caution | Fish 2x+ larger may eat smaller tankmates · Multiple territorial species in the same swim layer cause stress Open pair in Compare → |
3 species with compatible assessment in this sampleCollapse to hide the list; use “Open pair in Compare” for the full matrix.
| Species | Assessment | Notes |
|---|---|---|
| Pearl gourami Trichopodus leerii Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Pygmy gourami Trichopsis pumila Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Siamese fighting fish Betta splendens hybrid Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
Same rule engine as Compare. Not a substitute for observation, tank size, or acclimation.
Related species
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