Dwarf rainbowfish
Melanotaenia praecox
Melanotaeniidae
Moderate
Parameter dashboard
Temperature
22.8-27.8 °C
pH
6.8-7.5
Size
5 cm
Lifespan
5 years
Min tank80 L
Price$$
DietOmnivore
TemperamentPeaceful
OriginAsia
Shrimp-safeNo
Care guide
Dwarf rainbowfish require a tank size of at least 80L with temperatures between 22.8-27.8°C and pH 6.8-7.5.
Tankmate compatibility (sample)
Pairwise screening against other species in the database (prioritizing the same family when data is available).
Review first (7)
Caution or avoid from automated rules — confirm before mixing.
| Species | Assessment | Notes |
|---|---|---|
| Agassiz's dwarf cichlid Apistogramma agassizii Caution | Caution | Species with non-overlapping pH ranges may not thrive together Open pair in Compare → |
| Almorha loach Botia almorhae Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Arawana Osteoglossum bicirrhosum Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Asian bumblebee catfish Leiocassis siamensis Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Assamese snakehead Channa stewartii Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Red rainbowfish Glossolepis incisus Caution | Caution | Fish 2x+ larger may eat smaller tankmates · Species with non-overlapping pH ranges may not thrive together Open pair in Compare → |
| Boeseman's rainbowfish Melanotaenia boesemani Avoid | Avoid | Species with non-overlapping temperature ranges cannot coexist Open pair in Compare → |
5 species with compatible assessment in this sampleCollapse to hide the list; use “Open pair in Compare” for the full matrix.
| Species | Assessment | Notes |
|---|---|---|
| Adolf's catfish Corydoras adolfoi Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Amano Shrimp Caridina multidentata Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Asian Stone Catfish Hara jerdoni Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Assassin Snail Anentome helena Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Threadfin rainbowfish Iriatherina werneri 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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