Dartfishes
Dartfishes (Ptereleotridae) Overview
Dartfishes have two dorsal fins and feed on plankton. They are related to gobies and can be observed in sand- and rubble-bottomed areas. They are shy and if approached, they hide in burrows. Two species of dartfishes can be found in Hawaii, the Fire Dartfish and the Indigo Dartfish.
Frequently Asked Questions
What do dartfishes look like?
Dartfishes are slender, elegant fish with two dorsal fins and a torpedo-like shape. The Fire Dartfish is especially colorful, with a white front and orange-red tail.
Where can I see dartfishes in Hawaii?
Dartfishes are typically found hovering just above sandy or rubble-bottomed areas near reefs. They’re most easily spotted when they momentarily dart out of their burrows to feed.
Why do dartfishes hide so quickly?
Dartfishes are very shy and will quickly retreat into burrows or crevices if approached. This behavior helps protect them from predators in open sandy areas.
What do dartfishes eat?
Dartfishes feed primarily on plankton. They hover in the water column and pick off tiny food particles drifting in the current.
What species of dartfishes live in Hawaii?
Two species of dartfishes are found in Hawaiian waters: the colorful Fire Dartfish and the more subtle Indigo Dartfish, both known for their quick, darting movements.