Dwarf Neon Rainbowfish (Melanotaenia praecox)

Dwarf Neon Rainbowfish (Melanotaenia praecox)

Common Name: Dwarf Neon Rainbowfish
Scientific Name: Melanotaenia praecox
Size: 2.5–3 inches (adult)
Origin: New Guinea – Mamberamo River region
Temperament: Peaceful, social, and active
Tank Size: 20+ gallons
Water Conditions:

• Temperature: 72–82°F (22–28°C)

• pH: 6.5–7.5

• Hardness: 5–15 dGH

The Dwarf Neon Rainbowfish is a dazzling freshwater gem, loved for its shimmering iridescent blue body and contrasting red or orange fins. Compact and full of life, this species thrives in planted aquariums where its colors pop under natural or LED lighting. A schooling fish by nature, they show their best behavior and coloration when kept in groups of 6 or more.

Easy to care for and full of charm, the Dwarf Neon Rainbowfish is an ideal choice for both beginner and experienced aquarists looking to add a splash of color and movement to their community tank.

Fun Facts:

• Males display brighter colors, especially during courtship—expect dancing displays when they're in the mood!

• Despite their small size, they are very fast swimmers and enjoy open swimming space.

• Their peaceful temperament makes them excellent tankmates for tetras, rasboras, corydoras, and other non-aggressive species.

Diet:
Omnivorous—enjoys high-quality flakes, micro pellets, frozen daphnia, brine shrimp, and finely chopped vegetables.

Compatibility:
Perfect for peaceful community tanks. Avoid fin-nippers or overly boisterous species.

Add a shimmering school of Dwarf Neon Rainbowfish to your tank and enjoy a peaceful, colorful show of nature's brilliance every day!