Dragonets Fish Care And Amazing Facts

dragonets fish

Last updated on July 6th, 2022 at 02:40 am

The dragonets fish is a small freshwater species commonly found in the rivers and streams of Thailand. They can also be sometimes found in the saltwater areas. They are timid by nature, meaning they typically live in cracks and crevices of rocks or plants to avoid predators.

With beautiful iridescent scales and a graceful, flowing body shape, the Dragonets fish (Callionymidae) is one of the most popular fish in the aquarium hobby. However, many people believe that owning these fish is too difficult or frustrating for their first saltwater aquariums. Although they may not be suitable for novice aquarists, they definitely worth a try!

Dragonets fish are a group of small fish that originate from freshwater environments. They have a few unique characteristics that differentiate them from other freshwater fish, including their ability to breathe air and eat land insects!

They are a favorite for many aquarists due to their beautiful coloration and interesting behaviors. They are tropical fish with 12 different species. They love to live in hard, alkaline water and eat live food.

You may not be aware that dragonets fish can be one of the best aquarium fish to own. They are relatively small and easy to take care of, and they come in a variety of bright, eye-catching colors

In this article, you’ll find everything you need to know about freshwater dragonets fish – from the basics of dragonet care to common species profiles.

Origin and description

dragonets fish

The dragonets fish is a small species of fish that can be found in coral reefs and lagoons. They feed on plankton and other tiny organisms like larval shrimp and copepods. They have a distinctive appearance with bright colors and an elongated body with fringes that give it the appearance of a dragon.

Dragonets fish are most commonly found in the Indo-Pacific Ocean and can vary in color, shape, and size depending on their geographical location. The smallest dragonet species comes in at just 0.6 inches while the largest can be up to 5 inches. They typically have a long, thin body with two dorsal fins and a set of pelvic fins.

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They are colorful reef fish that do not belong to any particular species. They can be found in tropical waters all over the world, but they are most commonly associated with the Red Sea and the Indian Ocean. There are a few different types of dragonets that vary in color and size.

The Dragonet is a marine fish that lives in the Indian and Pacific Oceans. They are sometimes called dragonfish or dragon-like fish because of their long, thin bodies. Many people like to keep them in aquariums because they are colorful and do not require a lot of space.

Dragonets fish species profile

dragonets fish

Dragonets fish come in many species. The most common is the green or brown dragonet. The green dragonet is usually found in the Gulf of Mexico and along Florida’s beaches. This species can grow to be up to 4 inches long.

This dragonet has a long, thin snout, which is not forked like the other species of dragonets. The green dragonet has a single dorsal fin that is located in the mid-back area, and pectoral fins (near the head) that are also very small. It has a powerful jaw, which is used to flip over prey that it first traps with its long snout.

Scientific name

The scientific name for the dragonets fish is Callionymous erythrurus

Habitat and distribution

The dragonets fish prefer shallow water habitats near rocks and coral reefs at depths of less than 19 meters. They are also found in the East Indian Ocean, Southeast Asia, and Australia.

Size and weight

Dragonets fish are small in size, measuring only about 3 inches in length on average. They weigh less than one ounce.

Tank size

One of the major reasons that people purchase dragonets fish is because they are small and don’t need too much space. The recommended tank size for these fish is 10 gallons.

Tank setup

Dragonets need a tank that is at least 10 gallons in size. The tank should have a tight-fitting lid and a powerhead or other form of flow. They require a lot of oxygen, so their tank should be set up to maximize surface area and water movement.

Synchiropus Splendidus (Mandarin Dragonet)

It’s important to have plenty of room for the dragonet, as they are quite active swimmers. A filter is essential, or you’ll need some kind of device to help keep the water clean. Lighting is also necessary, so you should have some kind of lamp or another source of light on or near the tank at all times.

Sometimes, larger tanks are preferable because this fish spends most of its time on the bottom of the tank. The filtration system should be able to handle water changes of 100% per month or more. It’s also important to provide sufficient hiding places for this introverted fish, preferably with live plants growing in them.

When using sand in the tank, it may be necessary to have a deeper sand bed.

Tank mates

One of the most popular tankmates for dragonets fish is the cherry shrimp. This shrimp grows to around 3 cm in size, with males being larger than females. They are very easy to care for and breed readily in the tank. It is best if they are kept in groups of 8 or more; otherwise, they will be bullied.

Other good tank mates for dragonets fish are angelfish, bristlenose plecos, gold barbs, leopard barbs.


dragonets fish

To breed your dragonet, you will need a mate and an aquarium of at least 10 gallons. The mating ritual is very straightforward: the female will follow the male around for a few hours until she feels ready to begin building a nest.

Once she does so, it’s best to watch from a distance because they may bite if they feel threatened. If your female is receptive, place her in the nest and add around 30-50 eggs. If she’s not, remove her and repeat the process.

Once you see the eggs begin to hatch, it’s best to remove your pair or they may eat their young. If they do, it’s best to remove the whole nest and use some of the eggs for your own breeding purposes. Once the fry has hatched, they can be fed infusoria or liquid fry food.

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Do not overfeed them as it is easy to kill them. In a few days, they will be ready to eat dry food.

Are dragonets aggressive or peaceful?

Dragonets are usually peaceful creatures, but more aggressive than others. They can be more temperamental than other fish due to how sensitive they are to their surroundings. They will react with aggression if startled or upset because it’s a defense mechanism for them to ward off predators. In general, dragonets are not as aggressive as other fish species, especially those in the same family as they are.

Dragonets fish care

dragonets fish

Dragonets fish are small, yet hardy saltwater (or sometimes, freshwater fish, depending on the species) fish. They require a good amount of light and oxygen in order to thrive. In addition, they can be sensitive to water quality and will need to be fed several times a day.

What do dragonet fish eat?

Dragonets fish are omnivorous and will eat a wide variety of foods. They enjoy live, frozen, and freeze-dried krill, brine shrimp, Mysis shrimp, bloodworms, chopped squid, and nori seaweed. They also enjoy a variety of prepared foods such as spirulina flakes and shrimp pellets. Dragonets fish will also eat flakes of high-quality fish food.

Water conditions

Dragonets fish prefers a pH of 7.0 – 8.4, and a temperature of 23 – 27 degrees Celsius (73 – 81 degrees Fahrenheit). A good rule of thumb is to keep the water about five degrees warmer than room temperature. Dragonets prefer aquariums with plenty of live plants (at least 5 – 10), plenty of hiding places (rocks, wood, or plastic) for fish in distress or fish that are getting bullied by others in the tank to hide from predators and prey, and open spaces for swimming.


Most dragonets fish will live in an aquarium for about 5 years.

Parasites and diseases

The most common disease of the dragonets fish is velvet disease, and this should be monitored and treated quickly for the safety of your fish.

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Prevention of parasites and diseases is the most important factor in maintaining healthy aquatic life. Aquarium water should be treated with a de-chlorinating agent prior to filling, in order to avoid any chlorine or chloramines that may be in tap water.

Saltwater fish should be fed natural seaweed (such as kelp) which contains high levels of iodine, while freshwater fish should be fed foods rich in vitamin C, such as peas.

Aquariums should be kept as clean and free of debris as possible. Aquatic life can suffer from poor water quality, so it is important to run a filter and change the water regularly.

Population control

A large number of fish in a small space can cause stress, leading to the spread of disease and creating a poor environment for all fish. Overcrowding can be avoided by choosing species of a similar size, by regularly removing excess fish to a separate tank, and by not overstocking your aquarium.


Dragonets fish are prey for many larger predators, typically birds. The two known bird species that hunt them are the osprey and the wedge-tailed eagle. One other predator is humans who catch them for pets, restaurant food, or scientific study.

If you do have an overpopulation, it is best to remove fish from the aquarium one at a time. This allows the remaining fish to adjust and helps keep the stress level low for all fish.

Do they make good pets?

Yes. Dragonets fish can make good pets for those who have a lot of time to spend with them. They require a lot of care and they need a large tank. These fish are not suitable for beginners or those who have a busy schedule.