Dwarf Rainbowfish Tropical Fish Information

Melanotaenia praecox
Dwarf Rainbowfish
Behaviour Peaceful, shoaling, active
Typical size 6cm
Max size 8cm
Tank Area Middle, top, all
Min Tank Size 60cm
Min Number 4
Temp Min: 23℃ Max: 28℃
Feeding Flake, dried, frozen, live foods
pH Range 6-8.5
Hardness vs,s,m,h,vh
Group of Dwarf Rainbowfish Melanotaenia praecox
  • Group of Dwarf Rainbowfish Melanotaenia praecox - thumbnail
  • Dwarf Rainbowfish Melanotaenia praecox - thumbnail

Dwarf Rainbowfish (Melanotaenia praecox)

Dwarf Rainbowfish Tropical Fish Learn all about the Dwarf Rainbowfish's feeding habits and food types, its behaviour, its origins, its natural habitats, is it male or female, breeding advice and information, suitable tank mates, its sizing and growth range, minimum tank size, water PH and more. Use our fish community creator tool to plan your tank set up and ensure that the Dwarf Rainbowfish is the right fish for your aquarium.

The Praecox Rainbowfish is an attractive shoaling rainbowfish which has the same peaceful and active nature as many other fish of the genus. A group of these fish will adapt well to most aquariums and will add a nice dash of metallic colour. Darker tanks, or tanks with darker substrates will help to show off the fishes colours.

Dwarf Rainbowfish Facts

Family Melanotaeniidae (Rainbowfishes & Blue eyes) | Synonyms Rhombatractus praecox | Other names Dwarf Neon Rainbowfish, Neon Rainbowfish, Praecox Rainbowfish | Origin Asia; Indonesia; Irian Jaya | Breeding Open water egg scatterers | Natural Habitat flowing vegetated streams



Dwarf Rainbowfish Help and Advice

If you have a question about keeping Dwarf Rainbowfish's then please use our Dwarf Rainbowfish help forum. Join 100's of other fish enthusiasts with 1000's of years experience between them caring for and keeping fish like these.


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Check Tankmates for the Dwarf Rainbowfish fish species

Create a test community that includes the Dwarf Rainbowfish fish species and other types you'd like to introduce - Assess tank size suitability based on filter type and volume, possible negative interactions and warnings.

Please check your water type for compatibility with your fish, which can be found on the Dwarf Rainbowfish information box.
Tank Details
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If you'd like to talk about the "Dwarf Rainbowfish" with our users, then we have a buzzing community of fish enthusiasts where you can talk about tank issues, Dwarf Rainbowfish fish behaviour, Dwarf Rainbowfish tank stocking and any other issues related to the Dwarf Rainbowfish fish or other types you may have.

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