🐠 Best Fish for a 20 Gallon Tank

How to choose Best Fish for a 20 Gallon Tank not everyone knows? An aquarium is of great significance in feng shui, but the quantity and color of the fish is equally important. Here are a few points to note when choosing beautiful aquarium fish to get the best results.

What is The Best Freshwater Fish, Tropical Fish and Cool Fish for a 20 Gallon Tank

Common molly

The common molly fish or the black curryfish is a fish of the genus Poecilia, known collectively as the molly fish, it is sometimes referred to as the short fin molly or the regular molly.

  • Surname: The Grouper
  • Gender: Animals
  • Layer: Class of ray finned fish
  • Industry: Vertebrates
  • Set: Toothed Carp Set
  • Higher grade: Poecilia

Harlequin rasbora

Harlequin rasbora is a ray-finned fish of the genus Trigonostigma.

  • Scientific name: Trigonostigma heteromorpha
  • Last name: Carp family
  • Upper layer: Trigonostigma
  • Layer: Class of ray finned fish
  • Set: Carp Set
  • Conservation Status: Little Concern (Stable) Encyclopedia of Life

Dwarf gourami

Dwarf gourami is an almost translucent, almost translucent-green fish with vertical dark red to orange bands. This is an ornamental fish. This fish in Singapore carries iridovirus. Recent research shows that 22% of Trichogaster lalius in Singapore carries this virus.

  • Scientific name: Trichogaster lalius
  • Set: Set of copper perch
  • Upper class: Colisa
  • Level: Species
  • Surname: They
  • Gender: Animals

Cory catfish

Cory catfish is a genus of freshwater fish in the family Callichthyidae. This genus is also known as the rat fish genus which includes the mouse fish species. Many species of this genus are favored for ornamental purposes because of their small size and eye-catching colors.

  • Scientific name: Corydoras
  • Family: They are ratfish
  • Layer: Class of ray finned fish
  • Gender: Animals
  • Set: Catfish Set
  • Upper class: Corydoradinae

Gourami

They include freshwater fish species belonging to the Ministry of Sea bass. Fish is native to Asia.

  • Surname: They are fish; Jan van der Hoeven, 1832
  • Life expectancy: Siamese fighting fish: 3 – 5 years
  • Set: Set of copper perch
  • Length: Siamese fighting fish: 7 cm
  • Upper class: Perch subdivision
  • Gender: Animals

Zebrafish

Zebrafish or seahorse is a species of freshwater fish in the Carp family, Order Carp. Native to South Asia, it is a popular aquarium fish, commonly sold under the trade name danio zebrafish.

  • Scientific name: Danio rerio
  • Upper class: Danio
  • Conservation Status: Little Interest (Decreased) The Encyclopedia of Life
  • Level: Species
  • Found in: Lake Indawgyi
  • Last name: Carp family

Green swordtail

The Green swordtail is a species of freshwater / brackish water fish in the Giant Grouper family, the toothed carp. As a live fish carrier, it is closely related to the species Xiphophorus maculatus and can be crossed with it. It is native to a North and Central American region stretching from Veracruz, Mexico, to northwest Honduras.

  • Scientific name: Xiphophorus hellerii
  • Higher grade: Xiphophorus
  • Set: Toothed Carp Set
  • Surname: The Grouper
  • Level: Species
  • Gender: Animals

Guppy

Guppy is one of the most popular freshwater aquarium fish in the world. It is a small member of the Giant Friar family and, like the rest of the family, they are the type of fish that spawns.

  • Scientific name: Poecilia reticulata
  • Set: Toothed Carp Set
  • Higher grade: Poecilia
  • Level: Species
  • World (regnum): Animalia
  • Found in: Lake Naivasha, Pandan Reservoir

Southern platyfish

Southern platyfish, also known as pomegranate fish, dwarf jellyfish is a species of fish in the family Poeciliidae that are raised extensively for ornamental purposes. Meekness, friendliness, community life. Their maximum fish length is 9 cm. Fish give birth, are fertile and easy to breed. Fish are often interfered by accident or intentionally between species.

  • Scientific name: Xiphophorus maculatus
  • Gender: Animals
  • Layer: Class of ray finned fish
  • Higher grade: Xiphophorus
  • Industry: Vertebrates
  • Set: Toothed Carp Set

Neon tetra

Neon tetra or common neon fish is a freshwater fish in the family Characidae, distributed in South America in the Negro and Orinoco river basins, and is preferred to be kept as aquarium fish. Blue neon fish is the most popular type of neon fish currently chosen to keep in aquariums.

  • Scientific name: Paracheirodon innesi
  • Upper class: Paracheirodon
  • Set: Fat carp set
  • Level: Species
  • Family: Characidae
  • Gender: Animals

Ram cichlid

Ram cichlid, scientific name Mikrogeophagus ramirezi, is a species of fish endemic naturally from the Orinoco river basin, in the Venezuelan and Colombian savannas of South America. This species is used in fish behavior studies and is a popular aquarium fish.

  • Scientific name: Mikrogeophagus ramirezi
  • Set: Emperor Fish Set
  • Higher grade: Mikrogeophagus
  • Level: Species
  • Last name: Emperor Fish Family
  • Gender: Animals

Glowlight tetra

Glowlight tetra is a species of fish in the Characidae family, distributed in South America in the Essequibo River. The glow light tetra / Fire Neon is called glowlight tetra / Fire Neon, which has a beautiful color in an acidic environment, which is suitable for keeping in a herd aquarium.

  • Scientific name: Hemigrammus erythrozonus
  • Gender: Animal World
  • Higher grade: Hemigrammus
  • Set: Fat carp set
  • Family: Characidae
  • Level: Species

See more: Best Fish For a 5 Gallon Tank

How to Choose Best Fish for a 20 Gallon Tank

In fact, most people when choosing to buy aquarium fish only pay attention to the appearance of the fish to see if it is suitable for the aquarium or their hobby? Although this may help you to decorate your aquarium in the best way. However, choosing a fish that is not suitable for the environment in the tank may cause the ecological circle to be broken or harm the health of the fish. Therefore, some notes when buying aquarium fish that you need to pay attention to are as follows:

Understand the behavior of the fish you raise

Want to make sure the aquarium fish in my tank thrive, have beautiful colors and live a long life. You need to provide them with the best living conditions in terms of: water environmental factors such as temperature, water hardness (dH), pH … Food sources, habitats and swimming … Therefore, based on the environmental condition of the aquarium, conditions and ability to take care of yourself to choose for yourself the most suitable aquarium fish for your aquarium.

Avoid choosing fighting fish

If your aquarium is keeping gentle aquarium fish, you should choose fish with similar properties to keep the same tank. On the contrary, if you are a lover of the courage of the fighting fish, you should choose to keep in an aquarium fish that can adapt to aggressive fish. This will help you avoid fighting fish and killing each other, affecting the number of fish in the tank.

In addition, if you have aquatic plants in your aquarium, be careful when buying aquarium fish that you should not choose plant-eating fish, as they will ruin the landscape in your aquarium.

The right amount of fish in the tank

There are fish that can live independently in the tank. However, there are also types of fish that need to be lived in pairs or groups. Therefore, you should also carefully study this behavior to choose the right amount of fish.

Besides, depending on the size of the tank, you have to decide how many fish to keep in the tank. Avoid keeping too many fish, as this will make the water environment unable to accommodate the large number of fish in the tank. At the same time, many fish also confuse the landscape of the tank.

Also, note that when buying aquarium fish, before you intend to buy fish, you should fully prepare the best elements in the tank so that the fish can soon adapt to the new environment and not die.

Above is the share of Memfish.net about what to note when buying aquarium fish? Hope that our sharing has helped you choose the right aquarium fish for your aquarium. If you still have questions, please contact us for advice.

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