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Animal Profile IUCN: LC

Pygmy seahorse (group overview)

Hippocampus (pygmy complex)

Pygmy seahorses are miniaturised Hippocampus noted for extreme crypsis and male brooding; many live on gorgonians.The pygmy seahorse, measuring about one centimeter in length, is also known as the dwarf seahorse. Its observed body colors include red, gray, yellow, and white, and it varies depending

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Pygmy seahorse (group overview)
Scientific Name Hippocampus (pygmy complex)
Length ~1.4–2.7 cm
Weight Very small; varies
Lifespan ~1–3 years
IUCN Status LC
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Table of Contents

    Pygmy seahorses are miniaturised Hippocampus noted for extreme crypsis and male brooding; many live on gorgonians.


    The pygmy seahorse, measuring about one centimeter in length, is also known as the dwarf seahorse. Its observed body colors include red, gray, yellow, and white, and it varies depending on the soft corals it inhabits. Different species may also exhibit mimicry based on their specific host corals, but all three species share the same "super-mini" size, with a maximum length not exceeding three centimeters. This tiny marine creature, which is not commercially viable, has driven the growth of the tourism market, making the pygmy seahorse craze in the diving tourism industry a remarkable phenomenon.

    At a glance

    Profile Details

    Key characteristics, appearance, and habitat information.

    Traits & Behavior

    Miniaturised; male brooding; host-associated; cryptic.

    Appearance

    Tubercles/colour match hosts; prehensile tail.

    Distribution & Habitat

    Indo‑Pacific outer reef slopes; gorgonians/soft corals; 10–40 m.
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    Visual guide

    Browse available images of this species.

    Quick answers

    Pygmy seahorse (group overview) FAQs

    Q: Tips? Scan gorgonians for matching colours/tubercles; avoid strong light and contact.