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How to look after
Melanotaenia praecox
Dwarf neon rainbowfish
(Weber & de Beaufort, 1922)

Melanotaenia praecox - Dwarf neon rainbowfish - Male dwarf neon rainbows have red fin edges. Females can also have red fin edges, though usually less intense, or orange/yellow
Male dwarf neon rainbows have red fin edges. Females can also have red fin edges, though usually less intense, or orange/yellow
more images here

(Other members of the genus Melanotaenia)

ADULT SIZE: 8 cm

WATER CONDITIONS: Very hard and alkaline

TEMPERATURE RANGE: 23-27 C

FOOD: Feed Melanotaenia praecox live and dried foods. Not a fussy eater.

DISTRIBUTION: This species comes from Indonesia

SEXUAL DIFFERENCES: Male fish tend to be more brightly coloured in the fins, and have somewhat deeper bodies.

10 Neon Dwarf Rainbowfish Melanotaenia praecox Live Tropical Fish

Current price: $74.99
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Time left: 22d 15h 20m
(6) 1-1.5" Neon Dwarf Rainbowfish TR Melanotaenia praecox Live FreshTropical

Current price: $30.00
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Time left: 6d 8h 33m

AQUARIUM CARE: Dwarf neon rainbowfish hail from the Mamberamo river system in northern Irian Jaya, Indonesia. This huge river has numerous micro-habitats; M. praecox is thought to prefer shallow areas with submerged plants and driftwood. In the aquarium, this is easily replicated, and floating plants also seem to make this fish more comfortable. Some open water is also important for free-swimming, and as a shoaling fish, it should be kept in a group of at least six individuals.

BREEDING: M. praecox is a typical plant spawning rainbow; eggs are attached to plants, then left to develop with no attention from the parents. Spawning mops can be used instead of plants to allow eggs to be collected and raised in a separate spawning tank. Egg development takes a little over a week, and fry relish newly hatched artemia nauplii.

Have you bred Melanotaenia praecox? Why not fill in a breeding questionaire?, or examine existing Melanotaenia praecox breeding reports








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Fishkeeping Facts and Tips

A shoal of tetras? A well-planted Amazon tank with a large shoal of neon tetras looks amazing. The bright neon blue and red against a green leafy background has got to be one of the best combinations in fishkeeping. It is no wonder that these are one of the most popular aquarium species. But as with all shoaling species, tetras need to be kept in a group to be happy. The larger the better (without overstocking your tank). Six individuals is usually seen as the absolute minimum in a shoal, but more is better. The effect of a large tank with a shoal of 30-40 neon or cardinal tetras is simply stunning


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