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Dwarf Seahorse (Hippocampus zosterae)

Find Dwarf 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.

Dwarf Seahorse
Photo: Will Thomas · CC BY 2.0
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Where to buy Dwarf 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 Dwarf Seahorse

The Dwarf Seahorse is the world's smallest seahorse, rarely exceeding 1.5 inches in length. It features a tiny prehensile tail, upright posture characteristic of seahorses, and a coronet (crown-like structure) on its head. Coloration is highly variable, ranging from yellow and green to brown and black, often matching local seagrass and algae habitats.

Key facts

Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Feeding Schedule
3-4 times daily
Appearance
The Dwarf Seahorse is the world's smallest seahorse, rarely exceeding 1.5 inches in length. It features a tiny prehensile tail, upright posture characteristic of seahorses, and a coronet (crown-like structure) on its head. Coloration is highly variable, ranging from yellow and green to brown and black, often matching local seagrass and algae habitats.
Origin
Western Atlantic, primarily found in seagrass beds of the Gulf of Mexico and along the coasts of Florida and Texas. Also reported from the Caribbean region and Bahamas in shallow seagrass and mangrove habitats.
Diet Details
Dwarf Seahorses feed on copepods, amphipods, and other small live zooplankton. In captivity, they require frequent feedings of copepod cultures or specialized liquid fry foods, as they have small mouths and cannot compete for standard aquarium foods. Regular supplementation with live cultures is essential for long-term survival.
Difficulty Level
Dwarf Seahorses are challenging to keep and best suited for experienced aquarists. They require pristine water quality, stable temperatures (72–78°F), frequent live food availability, and gentle tankmates with no aggressive competition for food. They do not ship well and have modest survival rates in typical home aquaria.
Diet
planktivore
Temperament
Peaceful
Reef safety
Reef Safe
Care Level
Expert
Common Health Issues
Starvation, nutritional deficiencies, gas bubble disease, bacterial infections, poor water quality
Aka
Caballito Enano

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Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible fish listings — so you can see the conditions a fish was raised in before you buy. Log this fish on Reef Trak.

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