Saltwater Aquarium Fish for Marine Aquariums: Black Seahorse - Tank-Bred
FREE SHIPPING:  See details >
Orange Seahorse - Captive-Bred
(Hippocampus reidi)
Orange Seahorse - Captive-Bred
Due to variations within species, your item may not look identical to the image provided.
Additional locales and sizes may be available!

Quick Stats

Care Level Moderate
Temperament Peaceful
Color Form Yellow
Diet Carnivore
Reef Compatible Yes
Water Conditions 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.020-1.025
Max. Size 7"
Origin Brazil
Family Syngnathidae
Waterflow Low to Medium
Minimum Tank Size 55 gallons
Compatibility View Chart
What do these Quick Stats mean? Click here


The Orange Seahorse, Hippocampus erectus, is one of the hardiest and most energetic seahorse species. In the wild they spend most of their time hunting for tiny crustaceans to consume while using slow movements and camouflage to mimic their surroundings and appear invisible to predators. Although they are abundant in their sea grass habitat in the Atlantic Ocean on the East coast of North America and Brazil, they are a rare sight for divers because of their amazing ability to hide. Seahorses are able to change color to match their environment or their mood.

Looking for the best food to feed your Seahorses? We recommend AlgaGen Tisbe biminiensis.

These social fish thrive when kept as a mated pair or in small groups in a species-only aquarium. A 30 gallon aquarium is sufficient for a single pair. Add 20 gallons to the size of the aquarium for each additional pair. Spray bars may be used to create gentle flow while eliminating stagnant areas in the aquarium. Seahorses are not strong swimmers, preferring to use their prehensile tails to hitch to branching live rock, algae, or artificial decorations. Seahorses are less likely to contract Vibrio bacterial infections if the temperature is not allowed to exceed 74°F. This is particularly important if the aquarium contains other species of Syngnathids. It is also necessary to remove detritus and uneaten food daily. Calcium and alkalinity levels must be monitored and maintained to keep their bony plates healthy.

They may be kept with small, shy fish such as small gobies, pipefish, dragonets, and firefish. But aggressive, territorial, or fast-moving fish do not make good companions. Seahorses will be harmed by anemones and corals with stinging tentacles or corals that are large enough to consume them, such as brain corals. While sea fans, Acropora corals, and other branching corals may be safe for seahorses, they can be irritated or damaged by a seahorse that continually hitches to them. Crabs and clams may pinch a seahorse causing a wound that could lead to secondary infections. Small ornamental crustaceans may be consumed by the seahorses.

To witness the full beauty of the seahorse courtship ritual, an aquarium height of at least 16 inches is necessary. A male seahorse will court a female with elaborate dances and color changes. He will open his pouch and flush it with water to show her that it is empty. If she is ready to mate, the pair will intertwine tails and dance while ascending to the very top of the aquarium. During the descent the pair will line up face to face, and the female will deposit her eggs into the male's pouch. Approximately 20 days later, the male seahorse gives birth to an average of 300 demersal fry that are able to hitch at birth. When kept in mated pairs, they will greet each other each morning with a short dance and display.

Seahorses are probably the most recognizable fish in the world due to their unusual appearance and habits. They are very social, curious fish that are fun to watch while they interact with their surroundings, each other, and even their owners.

Approximate Purchase Size: Small: 1-1/2" - 3-1/2"; Medium: 3-1/2" to 5-1/2"

Supplies You May Be Interested In

Customer Testimonials

RJ Irving Delray Beach , FL
I had two Seahorses but about a month ago they died. It was really sad but before they died, they had babies three times! I would suggest this animal for everybody. They eat mysis shrimp frozen or alive.
1-1 of 1 testimonials

8:30 am - 5 pm CST
7 days a week

8:30 am - 5:00 pm CST, Mon - Fri