Hippocampus bargibanti

Pygmy Seahorse: Where and when to dive with them

1.4-2.7 cm
1-3 years
Data Deficient

The Pygmy Seahorse at a glance

The pygmy seahorse is one of the ocean's most incredible examples of camouflage, measuring less than 2 cm and living exclusively on gorgonian sea fans. Their tiny tubercles perfectly match the polyps of their host coral in both colour and texture. First discovered in 1969 when a scientist examined a gorgonian fan in a laboratory, these remarkable creatures are a holy grail for macro photographers and muck divers.

Behaviour & reproduction

Size
1.4-2.7 cm
Weight
Less than 1 gram
Lifespan
1-3 years
Status
Data Deficient

Diving Tips

Finding pygmy seahorses requires excellent buoyancy, a keen eye, and ideally an experienced guide. Never touch the gorgonian fan, even slight contact can harm both the fan and the seahorse. Limit photography time and avoid continuous strobe use.

Fun facts about the Pygmy Seahorse

  • Males carry and give birth to the young, like all seahorses
  • They were discovered by accident when a sea fan was collected for research
  • At least seven species of pygmy seahorse have now been identified
  • They can change colour slightly to match their host fan

Best time to see the Pygmy Seahorse

Year-round, visibility best in dry season

Where the Pygmy Seahorse lives

Exclusively on gorgonian sea fans (Muricella spp.) at 16-40 metres depth in the western Pacific

What the Pygmy Seahorse eats

Tiny crustaceans and plankton captured from water currents

Pygmy Seahorse: frequently asked questions

When is the best time to see Pygmy Seahorse?
Year-round, visibility best in dry season
How big does Pygmy Seahorse get?
Pygmy Seahorse: 1.4-2.7 cm
Is Pygmy Seahorse dangerous for divers?
Finding pygmy seahorses requires excellent buoyancy, a keen eye, and ideally an experienced guide. Never touch the gorgonian fan, even slight contact can harm both the fan and the seahorse. Limit photography time and avoid continuous strobe use.
What is the conservation status of Pygmy Seahorse?
Pygmy Seahorse: Data Deficient
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