Dwarf Rainbowfish
Melanotaenia praecox
Beginner
Freshwater
Peaceful and schooling. Prefers groups of six or more. Ideal ratio is one male to two females. Very active despite its size.
Melanotaeniidae
Max Size
5.0 cm (2")
Min Tank
40 L (11 gal)
Min Group
6+
Diet
Omnivore - balanced diet
Water Parameters
Temperature
22.0-28.0°C
72-82°F
pH
6.6-7.4
Hardness (dGH)
6.0-8.0
Min Tank Size
40 L
11 gal
About
Bright neon‑blue body. Red fins in males, yellowish in females. Small but robust species.
Behavior & Temperament
Peaceful and schooling. Prefers groups of six or more. Ideal ratio is one male to two females. Very active despite its size.
Feeding
Omnivore - balanced diet
Breeding
Oviparous. Free‑spawning. Eggs hatch in 10 days. May spawn for weeks. Clear dimorphism.
Compatibility
Good for community tanks
Quick Summary
| Scientific Name | Melanotaenia praecox |
|---|---|
| Family | Melanotaeniidae |
| Category | Fish |
| Care Level | Beginner |
| Water Type | Freshwater |
| Max Size | 5.0 cm (2") |
| Min Tank | 40 L (11 gal) |
| Min Group | 6+ |
| Diet | Omnivore - balanced diet |
| Temperament | Peaceful and schooling. Prefers groups of six or more. Ideal ratio is one male to two females. Very active despite its size. |
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