Robust Ghostpipefish
Solenostomus cyanopterus
Robust Ghostpipefish (Solenostomus cyanopterus) is a camouflaged, reef-associated relative of seahorses and pipefishes that mimics drifting weeds or crinoids. It is rare and usually encountered hovering motionless in sheltered tropical shallows.

Identification points
- Very laterally compressed body with an armored, angular profile
- Elongated dorsal and pectoral-fin lobes that resemble fronds or weeds
- Brood pouch formed by the female, with males lacking the seahorse-style pouch
Habitat
Sheltered tropical coastal habitats with reef flats, lagoons, seagrass, mangroves, and areas with floating algae or soft coral/crinoid cover; often in shallow water near structure where it can blend in.
Bait notes
Not a targeted game fish and generally not taken on conventional bait. If encountered by anglers, small live mysids, amphipods, or finely chopped marine bait may attract micro-predators nearby, but this species is best observed rather than pursued.
Behavior
A slow-moving ambush predator that feeds on tiny crustaceans and other planktonic prey by suction. It relies on camouflage, often drifting or hovering head-down among vegetation or debris rather than actively pursuing prey.
Caution
Handle minimally if at all; its bony body and fin spines can be damaged easily. It is not a food fish, so consumption is not recommended. Local protections or collection restrictions may apply in some regions.
Fishing notes
No practical sport-fishing method is recommended; it is delicate and easily harmed. Use careful snorkeling or shallow-reef observation instead of hooks, nets, or handling, and release immediately if accidentally captured.