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Neon Dwarf Rainbowfish

The Dwarf Neon Rainbowfish (Melanotaenia praecoxis) is a popular smaller rainbowfish with blue iridescence sides.  The male’s fins are red/orange in color making the fish standout in any aquarium.  They come from New Guinea, Indonesia. These are captive raised. They are perfect community fish with other similar fish.

They grow to the adult size of less than 3 inches.  They make a perfect addition to a 20-gallon tank or larger with like sized calm fish.  They enjoy being around live plants, so those are a plus. It is encouraged that they be kept in groups of 8 to 10 so they feel comfortable in their aquarium. In a group of males and females, the males will have brighter colors as they display to the rest of the group.

Please Note: All fish shipments have a 100% Live Arrival Guarantee when shipping with Overnight (1 Day) option. All other options void our Live Arrival Guarantee for fish. 

To replicate their natural habitat, the use of rock work, plants, and driftwood should be included in the aquarium. They also enjoy tannins in their water, so the use of Indian Almond or Guava leaves is highly recommended. They enjoy having a shaded aquarium so keeping floating plants is encouraged to cut down the light reaching them. We would not recommend keeping this fish with shrimp colonies due to the likeliness of the dwarf neon rainbowfish eating baby shrimp and potentially picking at adult shrimp.

The scientific name for the dwarf neon rainbowfish is: Melanotaenia praecoxis

They are omnivores by nature. We feed our dwarf neon rainbowfish a mix of frozen foods including daphnia, baby brine, cyclops, and bloodworms.

Our Tank Parameters

  • Ph: 7.2 to 7.8
  • Gh: 6 to 12
  • Kh:  2 to 6
  • TDS: 120 to 200
  • Temp: 72 to 86

Tank Recommendations

  • Leaves: Indian Almond or Guava
  • Wood: Mopani or Malaysian
  • Cones: Alder Cones
  • Other: Buffered substrate to lower pH, not required

Customer Reviews

Based on 9 reviews
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K
Kasi
Quality as always

I have purchased from Flips several times. Each and every time they arrive alive and healthy as can be. These dwarf rainbows are no exception. Even if they aren't insanely fancy or rare, they are beautiful energetic fish. Thank you so much.

A
Alex Gritton
3 Healthy fish

I purchased 3 of these and they arrived alive and well. It’s been a couple of weeks and they are still doing great.

M
Michael Nedoshytko
Fantastic Service! 10/10 Recommend!

Absolutely fantastic service. The fish came in excellent condition and Flip Aquatics honored my requests for the sex of the fish. Will definitely recommend to others and buy from Flip again!

T
Tony Sims

Neon Dwarf Rainbowfish

V
Vincent Schumaker
They all “arrived alive”. Great experience.

Great experience, I will be ordering again.