Toxotes jaculatrix
Silver, banded and often overlooked in mangroves near Raja Ampat and Palau's rock islands, water 25-31C, seen year-round.
A slim, silvery fish around 21 cm with a series of dark diagonal or triangular bands running down its flanks, most visible against the pale body. The mouth is angled upward and the profile is flattened along the top of the head, an adaptation for aiming at the surface. Look for it hanging just under the surface film near roots or overhangs rather than out over open reef.
Divers usually find archerfish holding position just beneath the surface at the edge of mangroves or shaded overhangs, often in small loose groups. They tend to stay put rather than dart off when a diver approaches slowly, though they will slip back into cover if pressed. Most sightings come from shallow, calm water where the surface is close enough for them to keep an eye on anything moving above it.
Archerfish are famous for spitting a jet of water from their mouth to knock insects and small prey off overhanging leaves and branches into the water, a skill they refine with practice as they grow.
Sightings show no clear season, and with a comfortable range of 25 to 31C on the tropical reefs and mangroves it inhabits, it is a year-round find rather than a seasonal one.
Most reliably logged in Indonesia's Raja Ampat, especially around mangrove-fringed bays, and in Palau's Koror & Malakal region among the rock islands. Also a steady find across the Philippines in the Visayas and Palawan, with a smaller presence on Queensland's coast and in Sulawesi.
Mapping where Archerfish is logged…
Raja Ampat in Indonesia and the rock islands around Koror & Malakal in Palau are the most consistent spots, with the Visayas and Palawan in the Philippines also worth checking. Look near mangrove edges and shaded shallows rather than open reef.
There is no strong seasonal pattern, and warm water between 25 and 31C keeps them present through the year, so any month diving these regions gives a reasonable shot.
Look for a silvery, slightly flattened fish about 21 cm long with dark diagonal bands along its sides, usually hovering just under the surface near mangrove roots or overhangs rather than out on open reef.
They typically reach around 21 cm, making them a small, easy-to-overlook fish best spotted by checking shaded shallows carefully rather than scanning open water.
They can shoot a precise jet of water from their mouth to knock insects off overhanging branches and leaves into the water below, a hunting trick that gives the species its name.
No, they pose no threat to divers and simply hold position near mangrove edges or retreat quietly into cover if approached too quickly.
Site and sighting data is aggregated from diver logs, iNaturalist and GBIF. For taxonomy and conservation status:
Rainbow Runners
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