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Product Details


1cm - 5cm

Care Level




Water Conditions

The Melanotaenia praecox Neon Dwarf Rainbowfish, also known as the Praecox Rainbowfish or Blue Neon Rainbowfish, is a captivating and popular species among aquarium enthusiasts. With its vibrant colors and active swimming behavior, the Neon Dwarf Rainbowfish adds a burst of energy and beauty to any freshwater aquarium. Let's explore a detailed description of this remarkable fish, including essential information on its appearance, water conditions, tank mates, feeding habits, and care.


  • Striking Colors: The Melanotaenia praecox Neon Dwarf Rainbowfish showcases a brilliant combination of iridescent blue, yellow, and orange colors along its body, creating a dazzling display of colors.
  • Slender Body Shape: They have a slender and elongated body with a slightly curved back, complemented by a forked tail fin and vibrant fins.
  • Size: The Neon Dwarf Rainbowfish typically grows to a size of around 2 to 2.5 inches (5 to 6 cm), making it suitable for small to medium-sized aquariums.

Water Conditions:

  • Temperature: Maintain a tropical water temperature range of 75°F to 82°F (24°C to 28°C) for the well-being of the Neon Dwarf Rainbowfish.
  • pH Level: Aim for a slightly acidic to slightly alkaline pH level between 6.5 and 7.5 to replicate their natural habitat.
  • Water Hardness: Provide a moderate water hardness level between 5 and 15 dGH.
  • Filtration: Efficient filtration and regular water changes are necessary to maintain excellent water quality.

Tank Mates:

  • Peaceful Community Fish: The Neon Dwarf Rainbowfish is generally peaceful and can be kept with other non-aggressive fish species.
  • Compatible Tank Mates: Choose small-sized fish that share similar water requirements, such as tetras, rasboras, or other peaceful community fish.

Feeding Habit:

  • Omnivorous Diet: The Neon Dwarf Rainbowfish is an omnivore and accepts a variety of foods.
  • High-Quality Flakes and Pellets: Offer a balanced diet of high-quality flakes or pellets specifically formulated for small tropical fish.
  • Supplementary Foods: Supplement their diet with occasional treats such as live or frozen foods like brine shrimp, daphnia, or small insects.


  • Tank Size: Provide a suitable aquarium of at least 20 gallons (75 liters) to accommodate a small group of Neon Dwarf Rainbowfish comfortably.
  • Water Quality: Regularly monitor water parameters and perform routine water changes to maintain excellent water quality.
  • Decor and Plants: Use live or artificial plants, rocks, and driftwood to create hiding spots and provide a natural environment for the Neon Dwarf Rainbowfish.
  • Lighting: Provide moderate lighting levels to enhance their colors and replicate their natural habitat.

Melanotaenia praecox Neon Dwarf Rainbowfish

SGD 3.25

Product Options

4 x Regular


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Aquarium Fishes, Tanks & Supplies From AngelHub Aquatics Boon Keng

Suitable Tank Mates for Melanotaenia praecox Neon Dwarf Rainbowfish