By Bob Goemans
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 Nemateleotris decora (Purple Firefish, Elegant Firefish)

Nemateleotris decora
Randall & Allen, 1973

Purple Firefish, Elegant Firefish

Likely Reef Tank Suitable

Likely Fish-Only Tank Suitable


These fishes belong in the Order Perciformes and Suborder Percoidei as members of the Family Microdesmidae (Dartfishes & Wormfishes) consisting of 2 subfamilies, 10 genera, and 73 species. Often thought of as "Gobies" however, they are members of the Dartfish Family Microdesmidae. These fish are zooplankton feeders, and generally hover in open water, yet near the safety of an area where they can quickly retreat if threatened. They like the security of wedging themselves into tight places for a restful night's sleep. Unfortunately, nighttime predators such as crabs may make them an evening snack. One per tank is sometimes recommended, as they can be quite quarrelsome among themselves, yet small groups have been successfully maintained.

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