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Seahorse Marine Life

No one offers a better selection of healthy marine fish in Ireland for the saltwater aquarium than Seahorse Aquariums. From angels, to clown fish, gobies, tangs, wrasse and more... The finest quarantined specimens in the world are just a click away. All Fish are kept in our retail store in Dublin.


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Dwarf Angelfish

These dwarf or pygmy angel fish are especially popular and many of them make great additions to an home aquariums. Most of them are quite beautiful and colourful and are generally hardy and easy maintain. Most are compatible with other fish but it's best to keep one dwarf angel per aquarium unless the aquarium is over 300 liters

Angels - Large

Setting up a marine tank is often the result of seeing some of these beautiful Angelfish. The fantastic colours and relatively hardy nature of these fish make them extremely desirable fish. Juvenile angelfish has a different appearance of the fully grown adult colours. Most will not be reef safe as they will eat corals. Make sure you have a large tank for these fish as they need plenty of swimming space


Anthias make up a sizeable portion of the population of pink, orange and yellow reef fishes seen swarming in most coral reef photography and films. Anthias are mostly small, peaceful, beautiful and this makes them quite popular for aquariums. They also will be out swimming in the water column most of the time. They will require feeding twice a day to be kept in good health.


Batfishes have broad, flat heads and slim bodies and some are covered with hard lumps and spines. Most Batfish can reach a size of around 40 cm in captivity and adapt well to the larger home aquarium. Batfish grow extremely fast and require a large sized tank with plenty of swimming room.


Blennies are generally small fish, with long bodies, large eyes and big mouths. They have an amazing character about them and are an excellent edition to the aquarium. Some have great cleaning abilities like the lawn mover blenny that will graze on the green algae on your glass leaving kiss marks around your aquarium. Other perch themselves on rock ledges and come in and out of little holes within the rock work of the aquarium. There are many types of blennies and each have their own characteristic.

Box Fish

Boxfish are funny fish to observe and watch. They reach an average size of 7 cm and adapt well to life in the home aquarium if provided with plenty of rock work and swimming space. They must be only kept with peaceful tank mates as they are not strong swimmers. They suit very well to an Seahorse aquarium as they also share the same diet and have a similar temperament.

Butterfly Fish

Butterfly fish come in all shapes and sizes and are well known for their brightly coloured bodies and elaborate markings. The butterfly fish can be difficult fish to keep as they need very specific water conditions that need regular and close monitoring to ensure they are stable. Most butterfly fish are not reef safe as they will pick at corals. Others are a great benefit to reef aquariums as they can target pest's in the aquarium with their long snouts. Many have dots on their bodies which are used in the wild to make them look like a larger fish to predators.

Cardinal Fish

The average size of most Cardinalfish is 5 cm. These fish make great additions to a peaceful aquarium, adapting well to life in an aquarium. Lots of rockwork and coral decorations should be provided to enable the fish to retreat from other fish in the aquarium if needed. Cardinalfish can be bred successfully in captivity, and the babies can be raised to adulthood with appropriate care. Many of the Bangi Cardinal fish available are all from captive bred sources.

Clown Fish

Clownfish are found in tropical marine waters throughout the world. They are home loving creatures and live amongst the tentacles of sea anemones in the shallow waters of coral reefs. They are the only fish that appear to be immune to the stings of the anemone. Clownfish do not need to have an anemone to survive in a home aquarium. Most Clownfish are now available from captive breeding so they are not taken from the wild

Damsel Fish

Many Damselfish species live in tropical coral reefs, and many of those are kept in marine aquariums. They are an inexpensive fish and great for a starter fish. Damselfish are known to be aggressive once fully grown in an aquarium so select the species carefully. The most aggressive would be the two spot domino damsel. Damselfish are a hardy fish and can be more tolerant of not perfect water conditions.


Dartfish have elongated bodies and are brightly coloured, Dartfish make a great addition to a peaceful aquarium for fish only 0or reef aquarium. They need plenty of hiding spots within the rock work of the aquarium, some require a deep sand bed for burrowing into at night time. Dartfish will jump when startled so glass covers on the aquarium or a tight-fitting hood on the aquarium is recommended.

Dottybacks (Basslets)

The Dottyback and basslets fish have amazing striking colours. They can also have an ego. They can dominate their aquarium and it's tank mates that are twice the size of them. They are suitable for aquariums due to their small size, hardiness and they are very disease resistant. They are mostly reef safe but due to their domination, only 1 per tank is recommended. If the tank is small they will bully other fish that you try to introduce to the tank so this needs to be kept in consideration.


The Dragonets are small fish with highly colourful and cryptic patterns. Easily confused with gobies as they are very similar in shape and size. They will spend most of their time on the bottom of the aquarium and prefer rocky and sandy bottoms and they hunt for food. Males are highly territorial so a pair must be kept or singularly. Some will only eat live food so a copepod population is needed in your aquarium to be able to support their diet needs.


Marine eels, of which there are about 20 different families, make interesting displays in your tank but are usually kept on their own since, should they get the least bit hungry, they'll most likely eat everyone else. Eels are nocturnal fish that live in caves and holes along a reef, snatching any hapless fish drifting by. In nature, eels will eat just about anything, and in captivity, they'll do the same, as long as it's meaty.


Filefish come in all shapes and sizes but typically are a skinny fish. They will grow to approximately 10cm and usually available at the 4cm size. Some are highly desired for eating the pest Aiptasia. They do very well in home aquariums and will eat almost any food you place in the aquarium. They require plenty of swimming space and rock work for hiding if they feel threatened.

Foxface / Rabbit Fish

The Foxface / Rabbit fish is a popular aquarium fish. They come in vibrant colours and are great for feeding on algae making them useful as part of a clean up crew. They can change colours rapidly if threatened or during the night time. They do posses venomous spines which would be painful if wounded from them. They are a shy fish and add a great splash of colour to any aquarium.

Frog Fish / Angler Fish

Frogfish also known as Angler Fish are amazing to watch. They work to eat and camouflage themselves so their prey come close and they then pounce on them swallowing them whole. They are easy to keep but best in a species only or predatory aquarium.


Gobies are a great addition to any aquariums and do very well thriving in a tank. They are typically a small fish that spend most of their time at the bottom part of the aquarium. Some species are known to be jumpers so a tight lid or cover over their tank is required. Some sand sifting gobies to a fantastic job of keeping the sand in the aquarium always clean.

Grouper / Grunts

Groupers / Grunts grow to be large fish and will require a large aquarium for them to grow. Most will only allow one per aquarium as there can be aggression between the same species. They will mostly eat any fish or shrimp that will fit in their mouth. Feeding when introduced to an aquarium can be difficult so live food of dwarf white shrimp will get them started till they can take frozen food.


Hawkfish have an amazing personality which make these fish so popular in an aquariums. They do not grow large and just hang around and perch themselves on different ledges in the aquarium. They will eat shrimp and small fish which is the downside to these fish. They can live with a shrimp but when the day comes he will fit in their mouth, he will become a meal. They can also jump when startled so a tight sealed lid on the aquarium is needed.


Hogfish grow up to 15 cm and will require a large tank to keep this fish to full life. Lots of swimming and hiding space is need for this fish to thrive as well as a closed lid as they can jump from the aquarium. They will eat smaller fish in the aquarium so best to be kept in a fish only tank or a predatory tank.


Making a burrow in the aquarium sand, this fish has a great character and is very entertaining to watch. A peaceful fish that does will in a community aquarium. They always seem to keep an eye on things in the aquariums and most time try to make there burrow in the middle of the aquarium so they can keep and eye on what is happening.

Lion Fish

Lionfish are amazing predators that drift quietly in the water looking for the next meal. They will eat anything that will fit in their mouth including shrimp. Some species grow up to 15cm so need a large tank to hold them. They do well in a predatory aquarium and are hardy fish that are great to watch when feeding. Live dwarf white shrimp are the best foods to see these fish in action.


With such a diverse amount of species of Marine fish there has to be a Miscellaneous section. Please if interested in any of these fish you must look up the care required for each fish. Each have their own behavior and specific requirement to be kept in a home aquarium.


Pipefish a skinny long fish that can grow up to 20 cm. They do well in a aquarium but as they are not strong swimmer they have problems competing for food in an aquarium with fast fish. They are excellent partners for Seahorses and do well as tank mates as they both share the same feeding requirements. They must be in a tank with low flow so they can get around the aquarium without using to much energy. Live foods suit the pipefish best but they also will eat frozen foods.


Pufferfish have a great personality and do well in an aquarium. Some puffers only grow to 7cm which make them OK for smaller tanks but others will get up to 20cm so need a large aquarium. They need lots of swimming space and hiding places. Meaty foods is their preferred diet and some require clams so they can blunt their beaks biting into the shells.

Rays / Sharks

Sharks and Rays for home aquariums come from around the coral reefs in the oceans. They are available as small specimens or even as eggs and then grow into their aquarium. They both have specialist needs and need to have their food enriched to give them the required vitamins needed for then to thrive in an aquarium. Most Sharks and Rays will out grow even large aquariums.


Seahorses are the most majestic creature in the ocean. Over millions of years old they truly captivate people watching them gracefully move. They adapt well to an aquarium as we sell only captive bred Seahorses. They require a tank with low flow and placid tank mates, best are pipefish. will eat only frozen mysis shrimp and also live foods.


Tangs are also known as Surgeonfish and are great additions to aquariums that have the size to give them the required swimming space. Their diet will mainly consist of algae foods to keep them happy and healthy. You must pay attention to aggression between Tangs and the order they are introduced to the aquarium will help with aggression in the tank.


Triggerfish are fascinating to watch swim with their fin on the top and bottom of their body. They do very well in aquariums that offer them enough space and hiding places. They can be aggressive when more than one of the same species are in the same aquarium. They will eat corals and shrimps so should only be kept in fish only tanks or do well in predatory aquariums. Triggerfish love meaty foods and live foods and grow very quickly.

Wrase - Fish Only

Fish Only Wrasse will eat corals, tube worms, crabs and snails. They are a very active fish and a great addition to any fish only or predatory aquarium. They offer lots of colour and are mostly out swimming in the main body of the aquarium. At night some bury themselves in the sand to prevent getting eating during the night.

Wrasse - Reef Safe

Reef Safe Wrasse will not eat corals and are safe with most invertebrates (shrimps). They offer lots of colour and are mostly out swimming in the main body of the aquarium. At night some bury themselves in the sand to prevent getting eating during the night. They are a very active fish and a great addition to any aquarium.

Live corals make your aquarium like an underwater garden. The appearance of some species of corals varies dramatically depending upon the environment. Seahorse Aquariums stock a massive selection at out retail store in Dublin.


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Marine Plants (Algae)

Improve the water quality of your marine tank while adding natural biodiversity (such as marine plants) to your underwater environment. In addition to helping clarify your water by absorbing nitrates, carbon dioxide and some metals, algae also serves as a food source for many marine species. For Aquarium with Seahorses, Algae will offer a natural holding post for the Seahorses.

LPS Corals (Large Polyped Stony)

Large polyped stony corals make up a huge group of corals, many of which make excellent choices for the reef aquarium. Most of the species that we offer are more hardy than some of the sps corals and generally are happy with lower water flows and lower lighting levels in a marine aquarium. This makes them great choices for those just venturing into keeping hard corals.

SPS Corals (Small-Polyp Stony)

Small-polyp stony (SPS) corals are generally considered a more advanced coral to keep in captivity when compared to large-polyp stony (LPS) corals and soft corals. As such SPS corals are not considered beginner corals, but for the more advanced aquarist, they provide a remarkably diverse and striking array of specimens from which to choose.

Mushroom Corals

Mushroom Corals are a great choice for a beginner coral. They are a soft coral and among the hardiest of corals commonly found in the hobby today which can tolerate less than idea water conditions for short periods of time. Mushrooms can also be found in a wide verity of colors and sizes making then a very great choice to add some color to any reef aquarium.

Nano Corals

This Nano Corals section have Corals that are better suited for the smaller nano aquarium. Although any small coral of frags of a coral can be suited for a nano aquarium, this section have corals that tend not to grow to large and are less likely to overtake the aquarium.


Polyps are mostly quite easy to maintain and are a valid choice for new reef aquariums, beginners or mature and experienced hobbyists. Their vivid colors and patterns make them an interesting add on in your marine aquarium. Polyps are corals that build colonies. Coral Polyps are very hardy and are therefore, easy to maintain.

Sea Fans / Gorgonians

Gorgonians also known as Sea fans are found primarily in shallow waters. The size, shape, and appearance of the gorgonians are highly correlated with their location. The more fan-shaped and flexible gorgonians tend to populate shallower areas with strong currents, while the taller, thinner, and stiffer gorgonians can be found in deeper, calmer waters. Gorgonian are filter feeders and require to be feed with plankton and other types of filter feeder foods.

Soft Corals

Soft corals are the easiest corals to keep in an aquarium. They do not have hard skeletons which make them less demanding on water quality which makes most of them a beginners coral. They are also less likely to be eaten by fish that eat corals, so this makes them more compatible in aquariums with angels and butterfly fish. Soft Corals are easy to grow and to also propagate into more colonies

Invertebrates, which represent more than 95% of the known species on Earth, are animals without backbones. Diverse, interesting, colourful, and unusual, marine invertebrates make great additions to your home saltwater aquarium and serve a job for keeping the aquarium clean.


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Anemones are ultimate house for clown fish. With a foot used to hold them in soft substrates or attach themselves to rocks or the glass of the aquarium. Provide excellent water conditions, moderate to strong current, and strong lighting.

Beginner Inverts

These are marine invertebrates proven to be hardy, undemanding, and well-suited for the beginning hobbyist. What must be watched is the salt level in your aquarium (salinity) as Inverts are the first creature to die if these are not correct. Starfish and Fan Worms do best in well-established aquariums. The diet of some inverts should be supplemented with foods designed for filter-feeding invertebrates.


Clams have become very popular among marine aquarists. The most distinguishing feature of clams is their large two-part shell and interior mantle which come in many different colours and patterns. Most have intricately colored patterns in the mantle, making them attractive additions to the marine aquarium.


Found in nearly all marine environments, Crabs can range from less than an inch to over 12 inches in diameter. Crabs are scavengers of any type of edible matter they find, providing an invaluable "cleaner" function, consuming both undesirable algae and detritus while mixing the sand.


Sea Cucumbers are best kept in reef or invertebrate aquariums. Water quality must be maintained at the highest levels, and care must be taken with any water intakes/overflows to ensure that the Sea Cucumber cannot become attached. A great clean up crew member for reef aquariums.

Fan Worms

Fan Worms are marine segmented worms that are sessile, attached to rocks or sand by their base. The plume of Fan Worms can measure up to 10" in diameter on some species. Fan Worms require excellent water quality. Fan Worms require supplemental feeding with foods designed for filter-feeding invertebrates.


Found in almost all marine environments, Lobsters inhabit the sandy bottom or the crevasses of rocky formations and in caves. Generally these animals are nocturnal, feeding at night, but most adapt well to the aquarium lighting and be a feature of your aquarium.

Misc. Inverts.

As there are thousands of different marine inverts, this section has some that do not fit into our main categories. Be sure to see what is available here and we always have strange inverts in store that do not make it up on the website.

Reef Cleaner Packs

Reef Cleaner Packages for saltwater aquariums offer natural solutions to undesired situations such as: microalgae, algae eating fish, detritus feeders, pests, and anaerobic sand beds. The Clean Up Crew in the packs will help keep your aquarium clean.

Sea Slugs

Sea Slugs, sometimes called Nudibranchs, display vivid colors and an unusual body shape. Typically found in tropical reefs, their most notable characteristic is the pair of stalked rhinophores or horns at the head of the Slug. Not all Nudibranchs are suited to home aquarium as they have diets that can not be replicated at home.


Shrimp make interesting and colorful additions to an invertebrate or reef aquarium. Shrimp are scavengers that will eagerly accept small pieces of fish or shrimp in the home aquarium. Shrimp have a hard outer shell (carapace) that must be shed (molted) for the shrimp to grow.


Snails belong to one of the largest classes of organisms, with over 40,000 recognized species. While the shell itself is the primary means of protection, the snail's ability to adhere to a surface and its production of noxious compounds also discourages predators.


Sponges filter massive amounts of water every day, feeding on the microplankton. Many will develop calcium, silica or sponging structures to support their shape. Sponges need to be anchored in rockwork; they do not tolerate sandy anchoring substrates.

Star Fish

Sea Stars characteristically have five arms extending from a central disk like a star. In the aquarium they can be fed small pieces of fish, placing the food near or even under the Sea Star. Serpent and Brittle Sea Stars are popular additions to reef aquariums that contain live sand as they constantly stir the bed and provide oxygen to beneficial bacteria.


Sea Urchins are approximately 5cm-8cm in diameter, with the spines extending possibly twice that distance. Care must be taken to prevent the Urchins from accidentally overturning rocks in the reef tank causing damage to themselves and other reef inhabitants such as live corals. Sea Urchins make great additions to marine aquariums, consuming undesirable algae and detritus within the tank.

This section has items that don't fall in to the other categories. From Live food to treat your fish, Live rock to build the base of your filtration system to sections with help for beginners to assist making a selection.


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Beginner Marine Fish

This section has the very easy to keep marine fish. These fish we call beginner fish as they will accept water conditions that are not perfect and are more forgiving than most fish.

Live Food

Live Food is the best food that you can give your fish. It is also the best way to introduce new fish to your aquarium that are finicky eaters to help them get started and eating Frozen or Dry food. We get regular shipments of Live food in at Seahorse Aquarium so its is always fresh.

Live Rock

Our live rock full of beneficial organisms that add biodiversity to your aquarium, provide a food source for certain species, and help clarify your water. From the moment of collection, our pre-cured live rock is under a constant spray of saltwater to remove unwanted organisms while nourishing the corals, algaes, and other beneficial life forms. Live rick is the basis of all filtration system for marine aquariums.

Marine Nano Fish

Marine Nano Fish are fish that are small in size and will not grow large. These fish all have their own care requirements but have a great chance of getting eaten is added to a large aquarium with big fish. Best to be kept with other small, Nano fish in small nano tanks.

What-You-See-Is-What-You-Get (WYSIWYG): the EXACT item you are ordering, not a representative photo. Premium Selection items are held, quarantined and shipped from our store in Dublin. Pre-Order Marindo shipments are pictures of the actual coral held in our Indonesian supplier's facility. These items are WYSIWYG but need to be pre-purchased and will then be sent across on the next shipment we have from them. Photo Lighting Note: To provide ideal colour & lighting for these species, these are photographed In either direct sunlight or with T5 lighting. The coloration of the animal / coral will vary under different intensities and Kelvin ratings of light bulbs. The species shown may look different under your tank lights and may take time to recover its colour after shipping.


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P.S. Marine Corals

Golden Marindo Shipment due 24th May 2013 Please find in this section the new corals that are available for Pre-Order for arrival on May 24th 2013. All orders must be received via this website by Monday 19th May 2013. We have some very rare corals available this time including the Pectinia spp. Chalice Coral Rainbow Coral which are extremely rare and fetch up to $1,000 in the USA amounst collectors and fraggers.

P.S. Marine Fish

This section of the site is not getting updated. We do however have in store lots of wired and unusual breeds and hybrid fish. Please check our New Arrival section for the full listing of what arrives every week.

P.S. Marine Inverts

This section of the site is not getting updated. We do however have in store lots of wired and unusual Marine Inverts. Please check our New Arrival section for the full listing of what arrives every week.

This section we have the items that have been sold in our premium selection section. If there is anything that catches your eye, just enquire and we should be able to get a similar piece for your aquarium. None of these actual items are available but chances are we will have something similar.


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February 2013

Golden Marindo Shipment landed February 2013 Please find in this section the corals that were available for Pre-Order for arrival in February 2013. These Corals are no longer available but are here to show you what types of corals that we are able to get.

September 2012

Golden Marindo Shipment landed September 2012 Please find in this section the corals that were available for Pre-Order for arrival in September 2012. These Corals are no longer available but are here to show you what types of corals that we are able to get.

July 2012

Golden Marindo Shipment landed July 2012 Please find in this section the corals that were available for Pre-Order for arrival in July 2012. These Corals are no longer available but are here to show you what types of corals that we are able to get.

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