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Satomi's Pygmy Seahorse (Hippocampus satomiae)

Find Satomi's Pygmy Seahorse across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified fish listings before you buy.

Satomi's Pygmy Seahorse
Photo: Rudie Kuiter · CC BY 3.0
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Where to buy Satomi's Pygmy Seahorse

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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  • Amazon

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  • Petco

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About Satomi's Pygmy Seahorse

Satomi's Pygmy Seahorse is one of the tiniest seahorse species, reaching only about 0.65 inches (17 mm) at maturity. The body is extremely slender with a prehensile tail and exhibits highly variable coloration—ranging from yellow, orange, red, brown, to dark patterns—often matching the seagrass or algae it inhabits. Distinguishing features include a coronet crown on the head, a deep brood pouch in males, and very fine body ornamentation.

Key facts

Difficulty Level
Satomi's Pygmy Seahorse is one of the most challenging seahorses to keep in captivity due to its tiny size, dependence on abundant live copepods and other microscopic prey, and extreme sensitivity to water conditions and tank disturbances. Only experienced aquarists with established planted systems and reliable live food cultures should attempt this species.
Reef safety
Reef Safe
Diet Details
Feed twice daily on live copepods, amphipods, and tiny mysid shrimp. This species requires abundant live food and cannot reliably be transitioned to frozen foods, making them demanding feeders suited only to well-established planted systems with natural prey populations.
Care Level
Expert
Diet
planktivore
Temperament
Peaceful
Care Requirements
• Tank: 10+ gallons, low-flow setup with gentle circulation • Water: 72-78°F, 1.020-1.025 SG, pH 8.1-8.3, excellent stability • Feeding: Daily copepods, mysis shrimp, live food preferred • Setup: Dense seagrass/macro algae, low light, calm environment • Notes: Pair-bonding species, very delicate; requires expert care
Common Health Issues
Starvation, inadequate live food supply, water parameter instability, stress from incompatible tankmates, parasitic copepods
Origin
Western Pacific, endemic to Indonesia (Sargasso seagrass beds off Ambon and surrounding islands). Found in shallow seagrass habitats at depths of 1-4 meters.
Appearance
Satomi's Pygmy Seahorse is one of the tiniest seahorse species, reaching only about 0.65 inches (17 mm) at maturity. The body is extremely slender with a prehensile tail and exhibits highly variable coloration—ranging from yellow, orange, red, brown, to dark patterns—often matching the seagrass or algae it inhabits. Distinguishing features include a coronet crown on the head, a deep brood pouch in males, and very fine body ornamentation.
Feeding Schedule
2-3 times daily
Max Size
0.65

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