The Fire dartfish has a pale yellow head which fades into white with light blue spots. It has a blue line between the eyes that extends back to the dorsal fin. The upper section of the eye has a blue line around it. The rear part of the body is a reddish brown color with a symmetrical greenish line across the rear dorsal and anal fins. The prominent dorsal fin is yellow.
IN THE WILD
Fire Dartfish are usually seen hovering over rubble or sandy areas of the reef. Usually they hover just above their burrow and as the name implies, they are quick to dart into their hole. They are usually seen singly or in pairs but occasionally four or five may be seen in a small group. They normally hover with their head in a slightly upright position facing into the current as can be seen in the images. The bright yellow dorsal fin appears to be used to signal each other and is often flicked up or down.
The Fire Dartfish is found across the Indian ocean and in the west Pacific. They are found between depths of 6-30 meters. More usually they are seen around 13 to 18 meters in depth.
The Fire Dartfish feed mainly on zooplankton and as a result are mainly found in areas with a fair amount of current.
During breeding pairs are formed and once the eggs have been laid the male carries the eggs in his mouth until they hatch. During this time the male cannot feed and towards the end of the incubation period the males become quite skinny making the protruding mouth more noticeable. This can result in cannibalism with the male eating some of the eggs.
FLAME DARTFISH CLASSIFICATION
Species: N. magnifica
The Reef Guide fishes, corals, nudibranchs & other invertebrates
East and South Coasts of Southern Africa
Dennis King & Valda Fraser