List of Most Popular Saltwater Fish

There are believed to be more than 20,000 species of saltwater fish on this planet. The marine aquarium hobby has taken some of the biggest and brightest fish and adapted them to the community settings found in the home aquarium with great success.

The clownfish is the most popular saltwater fish. They are saltwater fish that cannot adapt to a freshwater environment. Clownfish are ideal for beginners since they are easy to care for, as wild clownfish always stay in or near anemones in a reef environment, they require very little space.

Clownfish are omnivorous and they primarily feed on small zooplankton from the water, and algae, and eat most fresh, frozen, and dried foods, and a variety of other foods.

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Here are some beautiful and most popular saltwater fish:-

Royal Gramma

Royal Gramma is a great beginner fish for the new saltwater aquarium. They belong to a group of fish called the fairy basslets. They are perfectly sized, beautifully colored, hardy, and tolerant of the conditions within a saltwater tank. Royal Gramma is inexpensive, which is a combination that makes the royal gramma a great saltwater fish. The royal gramma is also a cleaner fish. It removes the parasite that lives on the skin of a fish from other fish. These fish are planktivores (very small plants and animals that float on the surface of the sea and on which other sea animals feed). It means they'll snack on any small critters they can find. Their diet naturally consists mostly of zooplankton and small crustaceans although they will also consume larger meaty foods.

Yellow Tang

The yellow tang is a saltwater fish species. It is one of the most popular Marine aquarium fish. The yellow tang eats algae. They can reach up to 8 Inches. If you plan on keeping this fish until your adulthood, it will eventually need at least an 80-gallon aquarium.

The Yellow tang is another popular tang, alongside the blue tang. However, the two species look very different from one another. A yellow tang looks like a butterflyfish with a box-shaped body and funned fins. During the day this fish is a bright neon yellow hue. At night it dims to a pale shade in order to blend in with the low light. This particular tang can live in small groups if they are all introduced to the tank at the same time.


There are many species of goby that may look very similar to one another but are not closely related. In fact, gobies can be found in freshwater, brackish water, and saltwater ecosystems all around the world. Gobies fish are predatory fish that will eat both plants and animals. Feeding your fish Pellets, artificial food, and live foods. Some of the common foods you can offer, Daphnia, live brine, shrimp, blood worms, and cyclops. Dried foods are not good for goby fish.

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Following are different types of clownfish for saltwater aquariums:-

Common NameAggression LevelAdults SizeMinimum Tank Size Required
Percula Low 3 In. 10-Gallon
Maroon Clownfish High 6 In. 30-Gallon
Cinnamon Clownfish Moderate 5 In. 30-Gallon
Saddleback Clownfish Moderate 4 In. 30-Gallon