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10 Best Saltwater Aquarium Fish in 2021

Looking at fish gives us many health benefits. Their gorgeous and colorful look help is to reduce our stress. Also, recent studies prove that we can drop our blood pressure and heart rate by looking at an aquarium just for ten minutes. Since fishes are easy to maintain than other pets, most people like to have fish as pets. And now there is a high demand for the best saltwater aquarium fish than the best freshwater aquarium fish among people. So we have listed the 10 best saltwater aquarium fish in 2021, which may help you before getting one.



1.Clown fish

Clownfish is at the top of the best saltwater aquarium fish for

Clownfish is at the top of the best saltwater aquarium fish for many years. You may have recognized this breed from the Disney movie Finding Nemo. They are in a variety of colors reddish and blackish. Usually lives in the deep warm water of the Indian ocean, red sea, and the Pacific Ocean. They can raise in smaller tanks, and they are also omnivores.

Family – Pomacentridae

Behavior – Peaceful

Diet – Omnivore

Price – $20 – $60


Clown fish - Saltwater Aquarium Fish
Clown fish – Saltwater Aquarium Fish



2. Harlequin Tusk

Harlequin Tusk might be the fish you are looking for. They are bright and colorful and will make your tank more attractive. The Australian Tusks are brighter than the Indian ocean ones. There are some things that we should concern about before buying Harlequin Tusk. Experts recommend keeping one species in a tank because they can’t tolerate their kind. Their ideal tank mates are Angel, tangs, etc.

Family – Labridae

Behavior – Semi aggressive

Diet – Carnivore

Price – $349 – $499


Harlequin Tusk
Harlequin Tusk



3. Sea Goldie

Sea Goldie is one of the popular breeds in the aquarium trade. They are found in the Indian Ocean and the Pacific Ocean including southeast Australia. This fish is best in hiding inside coral reefs. So they preferred hiding places also inside the tank. Not required a big tank and is easy to maintain.

Family – Serranidae

Behavior – Peaceful

Diet – Omnivore

Price: $25 – $30





4. Royal Gramma

Royal Gramma is a common species found in aquariums. They can be easily recognized by their unique color pattern. The head is violet in color, and the tail is yellow. Due to the peaceful nature and easy maintenance, we can see many of their species in aquariums.

Family: Grammatidae

Behavior: Peaceful

Diet: Omnivore

Price: $34- $44



5. Six Line Wrasse

Six Line Wrasse is one of the most popular saltwater aquarium fish. Mostly found in Indo Pacific region. They have a blue body with six orange strips. It has been recorded that they are doing some cleaning job in the tank. Predators always tend to attack them, but their speed helps them to escape.

Family: Labridae

Behavior: Peaceful

Diet: Omnivore

Price: $29.99



6. Hawkfish

Flame Hawkfish is a wonderful breed in saltwater. They often spend time behind the rocks and branches. After Flame Hawkfish is established in the aquarium, they will swim in front of the tank when they see us. Their extreme friendliness is a thing that is required to a tank.

Family: Cirrhitidae

Behavior: Semi aggressive

Diet: Carnivore

Price: $69.99 – $79.99





7. Yellow Coris Wrasse

Experts always recommend the Banggai Cardinal as an attractive saltwater aquarium fish. They can be found only in the Banggai islands of Indonesia. The silver body with black stripes and white dots makes a beautiful appearance. Banggai Cardinals are also known as slow swimmers and eaters. But now, they are named as endangered species.

Family: Apogonidae

Behavior: Peaceful

Diet: Omnivore

Price: $35.99 – $ 39.99



8.  Bicolor Angelfish

Bicolor Angelfish is an Angelfish with blue and yellow color. Every Bicolor Angelfish has the same color pattern. Experts recommend keeping one of them at a time in the tank. Their care level is easy. Sometimes they will be aggressive when some other fish enter their hood.

Family:  Pomacanthidae

Behavior: Semi Aggressive

Diet: Omnivore

Price: $79.99



9. Damselfish

There are 300 different types of Damselfishes in the world. Most of them have attractive color patterns, and some of them are aggressive. For saltwater aquarium fish beginners, it is better to have friendly damselfish. Chrysiptera is known as the friendliest damselfish of all.

Family: Pomacentridae

Behavior: Semi aggressive to Highly aggressive

Diet: Omnivore

Price: $8 – $30





10. Regal Tang

Blue Tang is also a popular bred as same as the clownfish. They are found in the Indo-Pacific region. Their body color will change when they are under stress. The female blue tang is aggressive than the male.

Family:  Acanthuridae

Behavior: Semi aggressive

Diet: Omnivore

Price: $109.99- $149.99



Recent studies have also proved that watching fish in an aquarium can be effective in reducing anxiety in patients awaiting dental surgery. Aquariums can also help adults and children with autism and ADHD.



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