There are many popular freshwater fish that can be kept in an aquarium, and the best species to keep can depend on various factors such as tank size, water parameters, and personal preferences.
10 popular freshwater fish that are commonly kept in aquariums:
Guppies
Guppies are small, colorful fish that come in a variety of colors and patterns. They are easy to care for and known for their lively and active nature, making them a great addition to community aquariums. Guppies are the cheapest in the popular freshwater fish category.
Angelfish
Angelfish are graceful fish with distinctive triangular-shaped bodies and long flowing fins. They are known for their striking appearance and are often kept as centerpiece fish in larger aquariums.
Dwarf Gouramis
Dwarf gouramis are small, colorful fish with unique patterns and vibrant hues. They are peaceful and can be kept in community aquariums, but males can sometimes be territorial.
Corydoras Catfish
Corydoras catfish, also known as “cories,” are small bottom-dwelling fish known for their peaceful nature and cute appearance. They are popular for their scavenging abilities and can help keep the tank clean.
Neon Tetras
Neon tetras are small, colorful fish known for their vibrant blue and red markings. They are peaceful and easy to care for, making them a popular choice for community aquariums.
Swordtails
Swordtails are colorful fish known for their elongated tails resembling a sword. They are easy to care for and can be kept in community aquariums, but males can sometimes be aggressive toward each other.
Cherry Barbs
Cherry barbs are small, peaceful fish with a bright red coloration. They are hardy and known for their playful behavior, making them a popular choice for community aquariums.
Betta Fish
Betta fish, also known as Siamese fighting fish, are known for their stunning colors and long-flowing fins. They are often kept alone in smaller aquariums due to their territorial nature.
Harlequin Rasboras
Harlequin rasboras are small, peaceful fish with striking black and orange coloration. They are known for their schooling behavior and are best kept in groups of 6 or more.
Rainbowfish
Rainbowfish are colorful, active fish that come in various species and colors. They are known for their energetic swimming and are best kept in larger aquariums with plenty of swimming space.
It’s important to research the specific care requirements of each species, including tank size, water parameters, diet, and social behavior, before adding them to your aquarium. Also, be sure to provide a suitable and well-maintained environment for the fish to thrive in, including proper filtration, heating, and water quality management. Regular monitoring of water parameters and proper nutrition is key to keeping your popular freshwater fish healthy and happy in your aquarium.
