Hippocampus histrix
The Thorny seahorse (Hippocampus histrix) is a small, heavily camouflaged marine fish that frequents shallow coastal habitats. Anglers seek it mainly for observation or photography rather than sport, as it offers minimal fight and is not a food fish.
Family
Syngnathidae
Max Size
17 cm
Habitat
marine
Depth Range
0-82m
Climate
tropical
Best Season
Summer (June‑August) in tropical regions
Best Time
Early morning or late afternoon when currents are gentle
Select a map type to show distribution on the globe.
Christmas Island Marine Park
Australia (Christmas Island)Protected waters around Christmas Island host dense populations of Thorny seahorse on coral outcrops and macroalgae.
Best: May‑October
Raja Ampat – Misool Island
IndonesiaRemote reefs of Misool provide abundant seahorse habitat among sponge gardens and branching corals.
Best: April‑September
Lizard Island, Great Barrier Reef
AustraliaThe lagoon and reef flats around Lizard Island are known for regular sightings of Thorny seahorses on reef crests.
Best: October‑April
El Nido, Palawan
PhilippinesShallow limestone karsts and seagrass beds near El Nido host thriving seahorse colonies.
Best: March‑June
Dahab Reef, Red Sea
EgyptThe reef slopes off Dahab offer good visibility and abundant macroalgae where thorny seahorses hide.
Best: June‑September
Baa Atoll, Maldives
MaldivesWorld Biosphere Reserve waters of Baa Atoll have rich coral habitats supporting steady seahorse populations.
Best: January‑May
Best bait: Live or freshly killed copepods, tiny shrimp larvae, or mysid shrimp