Erectus Seahorse - Captive Bred

Hippocampus erectus

(4 Reviews)

Erectus Seahorse - Captive Bred

Erectus Seahorse - Captive Bred

Hippocampus erectus

(4 Reviews)

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Erectus Seahorse - Captive Bred Care Facts

Care Level: Moderate
Temperament: Peaceful
Diet: Carnivore
Reef Safe: Yes
Minimum Tank Size: 40 gallons
Max Size: 8 inches

Captive Bred Erectus Seahorse

The Captive Bred Erectus Seahorse, also known as the Lined Seahorse or Northern Seahorse, offers a captivating addition to saltwater aquariums. These hardy seahorses, typically 6-8 inches in size, thrive in habitats resembling shallow coastal waters, such as seagrass beds and mangroves. Reef-safe and adaptable, they prefer diets of live or frozen mysis shrimp and copepods. Tank companions should be chosen carefully to accommodate their feeding habits and peaceful temperament. A minimum tank size of 40 gallons with stable water conditions is recommended for optimal care. Trusted sources like provide sustainable options for acquiring healthy Captive Bred Erectus Seahorses, ensuring a rewarding experience for enthusiasts.


Indigenous to the Western Atlantic's coastal waters, Captive Bred Erectus Seahorses thrive in habitats with live rock and artificial structures for anchorage, mirroring their natural environment in seagrass, mangroves, and reefs.

Reef Safety

These seahorses are compatible with reef aquariums, preferring stable, minimally disrupted environments, thus requiring careful integration.

Size & LIfespan

Reaching 6-8 inches, Captive Bred Erectus Seahorses can live for 3 to 5 years in captivity under optimal conditions, offering a long-term aquarium commitment.

Diet In Captivity

They need regular feedings of live or frozen mysis shrimp, enriched brine shrimp, and copepods to meet their unique nutritional needs.

Aquaculture Availability

Available through aquaculture, these seahorses are a sustainable option for aquarium enthusiasts, promoting healthier specimens and conservation.

Compatibility With Other Fish

Due to their peaceful nature and specialized feeding needs, selecting non-aggressive tank mates for these seahorses is crucial for a harmonious aquarium.

Sexual Dimorphism

Identifying gender in these seahorses can be tricky, with courtship behaviors often providing the necessary insights.

Juvenile To Adult Color Changes

As they mature, the coloration of these seahorses transitions from bright juvenile hues to subtler adult shades, blending with their environment.

Mating Behavior

Their courtship involves synchronized swimming and color changes, culminating in the transfer of eggs to the male for fertilization.


With their calm and slow-moving demeanor, these seahorses add a tranquil presence to peaceful community aquariums.

Ideal Tank Conditions

A minimum 40-gallon tank with stable water conditions, gentle flow, and specific parameters is essential for their well-being.

Other Names

Known alternatively as Lined or Northern Seahorses, identifying them is straightforward.

Top 5 Tank Mates

Selections include the Banggai Cardinalfish, Firefish Goby, Tailspot Blenny, Cleaner Shrimp, and Emerald Crab, all of which complement the seahorse’s peaceful environment.

  • Banggai Cardinalfish (Pterapogon kauderni): Peaceful and adds diversity to the tank.
  • Firefish Goby (Nemateleotris magnifica): Compatible due to its non-aggressive nature.
  • Tailspot Blenny (Ecsenius stigmatura): Small and well-suited for reef environments.
  • Cleaner Shrimp (Lysmata amboinensis): Helps maintain tank cleanliness.
  • Emerald Crab (Mithraculus sculptus): A small and interesting addition to the tan

Got one of these when they went on sale on Black Friday and it’s still doing great! Really impressed with he durability of this little guy- we’ve had power outages that caused crazy temperatures, raging algae outbreaks, etc and he’s still kicking! Really worth the cost of shipping instead of getting one of questionable origins from my local fish store.

Reviewed by: Ashley on Feb. 26, 2018

Excellent quality, they began eating as soon as they were received and acclimated, still doing very nicely. I am very happy with them and they seem to be very happy here with me.

Reviewed by: Glenn on June 5, 2016

Reviewed by: Jarred on Oct. 17, 2014

I ordered two of these seahorse's... They are fat and very healthy!! Great shipping too! As soon as I acclimated them and put them in the tank they were eating frozen mysis shrimp... Loved them so much I just ordered two more..:) Thanks so much saltwater ... I have ordered a lot from you guys and have never been disappointed!

Reviewed by: Sherry Dawdy on Nov. 4, 2013

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