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Narrow-Bellied Seahorse (Hippocampus angustus)

Find Narrow-Bellied 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.

Narrow-Bellied Seahorse
Photo: Kristin Anderson · CC BY 4.0
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Where to buy Narrow-Bellied 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 Narrow-Bellied Seahorse

The Narrow-Bellied Seahorse is a small, delicate syngnathid with a distinctly slender body trunk and elongated snout. Coloration is typically tan, brown, or yellowish with darker mottling and occasional banding patterns. The species exhibits a pronounced narrow profile compared to other seahorse species, with a prehensile tail and dorsal fin positioned along the back.

Key facts

Appearance
The Narrow-Bellied Seahorse is a small, delicate syngnathid with a distinctly slender body trunk and elongated snout. Coloration is typically tan, brown, or yellowish with darker mottling and occasional banding patterns. The species exhibits a pronounced narrow profile compared to other seahorse species, with a prehensile tail and dorsal fin positioned along the back.
Common Health Issues
Marine Ich, Fin Rot, Swim Bladder Disorder, Bacterial Infections, Parasitic Infestations
Diet Details
Feed primarily small live copepods, amphipods, and enriched mysis shrimp. Multiple daily feedings of small portions are essential, as seahorses are slow feeders and may not compete well with faster fish. Frozen foods can supplement but fresh/live foods are preferred.
Reef safety
Reef Safe
Care Requirements
• Minimum 20 gallon tank with gentle flow and abundant live seagrass, macroalgae, or artificial holdfast structures for anchoring • Temperature range 72–78°F; maintain stable conditions to minimize stress • Salinity 1.023–1.025 SG; seahorses are sensitive to fluctuations • Feed small live foods 2–3 times daily: copepods, amphipods, mysis shrimp, and enriched brine shrimp • Keep with peaceful tank mates only; avoid strong swimmers and predatory fish • Pair seahorses if possible; they are monogamous and thrive in pairs
Min tank size
20 gallons
Temperament
Peaceful
Care Level
Hard
Diet
planktivore
Difficulty Level
Advanced - Requires experienced care due to sensitive nature specific habitat needs or complex dietary requirements. Best for expert aquarists.
Family
Syngnathidae
Feeding Schedule
2-3 times daily

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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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