Neon Dwarf Rainbowfish

Neon Dwarf Rainbowfish (Melanotaenia praecox) display iridescent blue-silver bodies and contrasting fins. Their scales catch the light as they swim, making a group especially attractive against green plants. Mature males are generally more colorful and deeper-bodied than females.

Aquarium & care

Allow for adults reaching approximately 8 cm. We recommend a 20-gallon long aquarium or larger for a group, with plants and open swimming space. Maintain 73–82°F (23–28°C), pH 6.8–7.5, and hardness around 5–15 dGH. Keep the aquarium fully cycled, filter reliably, and perform weekly partial water changes.

Feeding

Feed small tropical flakes or micro-pellets with occasional suitably sized frozen or live foods. Offer manageable portions and remove uneaten food.

Temperament & tankmates

Keep a group of at least 6–8. Peaceful community companions may include small compatible schooling fish and Corydoras. Match water needs and avoid predators, persistent fin-nippers, or tankmates that overwhelm them at feeding time.

Ordering information

Current sale size: approximately 2.5 cm. Price: $15 per fish. Sale size is not adult size. Photos are for reference and individual fish may differ. Contact Las Vegas Exotic Fish at (702) 685-5100 to confirm availability, collection, or shipping.