N
Luxe Prestige Chronicle

how long do seahorses live

Author

Emily Wong

Updated on June 19, 2026

Seahorses can live up to 6 years when properly cared for. Where can I buy seahorses? Various seahorses can be purchased at your local Petco Pet Care Center. Availability varies by location.

What is the longest living seahorse?

In captivity, seadragons are known to have lived for up to nine years. This is considerably longer than their relatives, the seahorses, which usually live up to five years.

Are seahorses hard to keep alive?

Though unique in their care needs, seahorses are surprisingly easy to keep (and even breed) if they are maintained in the proper type of fish aquarium system, kept with appropriate tankmates, and offered the right kinds of fish food. Most of all, they can be extremely rewarding to observe and care for.

How much does a seahorse cost?

Seahorses for Sale

Seahorses are not cheap. The average is about $100.00 for 10 dwarf horses. This is why you need to do your research to ensure that they will live before spending any money. They also require a lot of care.

Can seahorses live in an aquarium?

Seahorses really enjoy having space and will use the whole aquarium. Having extra water volume can create a more stable environment as well. While 30 gallons is the minimum recommended aquarium size a 40-50 gallon aquarium size would be even better.

What do pet seahorses eat?

Feeding. Feeding your seahorses once per day is simply not enough. In captivity, seahorses should be fed at least twice per day. Most seahorses require a varied diet but will happily accept most available frozen fish foods, including mysis shrimp, brine shrimp, plankton, krill, ghost shrimp, and cyclops.

Can you own sea dragons?

It is illegal to keep a sea dragon as a pet that was caught in the wild. However, this shouldn’t encourage you, as there are only very few sea dragons raised in captivity. To this date, nobody managed to breed this fish.

Do seahorses have blood?

Seahorse Respiration

When there is more oxygen in the surrounding water than in the seahorse’s blood, the oxygen molecules will naturally pass from the water into the seahorse’s bloodstream. Similarly, carbon dioxide diffuses from the bloodstream into the surrounding water.

How long are sea dragons?

Common sea dragons reach a length of 45 cm (18 in). They are found in reefs, seaweed, and seagrass.

Can seahorses live with starfish?

But there are a number of colorful starfish that do well with seahorses. Any of the brightly colored Fromia or Linkia species would make good tankmates for seahorses.

Can you keep clownfish with seahorses?

Mature breeding pairs of clownfish can sometimes become territorial so you do want to keep an eye on them when they mature although they maybe perfectly fine with your seahorses long term with no issues. This is true for not only keeping them with seahorses but other fish in general too.

Are seahorses marine or tropical?

They are found in both warm tropical seas and chilly waters. All but one species thrive in marine (i.e., saltwater) environments. Seahorses are primarily marine fish, although a few species have been found living in brackish rivers.

How many babies does a seahorse have?

The male seahorse has a pouch on its stomach in which to carry babies—as many as 2,000 at a time. A pregnancy lasts from 10 to 25 days, depending on the species.

What is the easiest seahorse to care for?

The Lined Seahorse (Hippocampus erectus) is also known as the Erect Seahorse or Atlantic Seahorse. This Seahorse adapts well to aquarium life if it is fed properly and if the tank is well maintained. The Lined Seahorse prefers a quiet tank with other non-aggressive fish, such as the Mandarin Dragonet.

How do seahorses eat?

Diet. Seahorses are ambush predators: They hold still and wait for krill, copepods, fish larvae, and other tiny edibles to float by and then nab them with remarkable speed. Toothless and lacking a stomach for food storage, the animals use their long snouts like vacuum cleaners to suck up plankton nearly continually.

Is a seahorse a good pet?

Seahorses are not recommended as a fish for beginners.

Seahorses are pretty and unique, but they do require a big commitment. They also make relatively good pets if you have the experience and supplies necessary to properly take care of them.

What fish can you put with seahorses?

There are many slow, cautious fish that make excellent tankmates for seahorses. Scooter blennies, firefish, Banggai and pajama cardinals, and royal grammas are generally considered safe tankmates. Many small goby species are acceptable.

Can you hold a seahorse?

Do not chase, disturb or touch seahorses. Seahorses are a protected species and it is an offence to disturb them. It is an exciting experience to see one but it is best for you and the seahorse to keep your distance and calmly observe. If the seahorse swims away, do not pursue it.