UPSIDE-DOWN CATFISH
The ‘Upside Down Catfish’ (technically called synodontis nigriventris) is thus named for its amusing habit of swimming primarily while upside down. The upside-down catfish is native to Africa, in the Central Congo basin. This species of fish is relatively easy to care for due to its small size, and hardiness in varied water conditions. Upside-Down catfish will thrive off of a diet that includes flake food, frozen food and live food. It’s best to keep upside-down catfish in groups of three, since this is the best proven fish care method for preventing them from becoming lonely.
ROSY BARB
Rosy barb fish are a tropical freshwater fish that are related to minnows. Rosy barb fish are native to Bengal, India as well as certain parts of Southeast Asia. They are one of the larger species of barb fish, growing up to 6 inches (14 cm) in length. They are pinkish in color, with the males tending to have a distinct reddish color to their fins. Rosy Barb fish are very easy to care for, due to their hardy qualities and peaceful nature. It’s best to keep Rosy Barb fish in groups of five fish or more, in order to prevent them from becoming too aggressive.
GOLDFISH
Goldfish are widely recognized for their high value as simple aquarium fish to care for, currently being the most popular fish kept by aquarium owners worldwide. The typical orange coloration of today’s goldfish is actually the result of an ancient genetic defect in the breed, with the color being selectively bred into future goldfish populations. Today, goldfish are available in a variety of colors, and also have many different breed variations. Goldfish food is easily available for purchase at most pet care supply stores, and is usually fairly inexpensive as well.
BETTA
Betta fish are becoming increasingly more popular, being available in supermarkets, pet supply stores and even home decoration supply stores. Though this is partially due to the vibrant colorations associated with the betta fish breed, it is also because betta fish are relatively hardy when it comes to their environment. Betta fish can tolerate a variety of temperatures, water quality conditions and pH levels in their tank. However, it’s still important to ensure that your betta fish is properly cared for, as this is not an excuse to refrain from cleaning your betta fish’s tank.
DANIO
Danio fish are surface feeders, and are able to thrive off of most any commercial fish food product. Since Danio fish are such enthusiastic feeders, it’s important to ensure that they do not consume the majority of the food designated for other fish during feeding time. Danio fish are playful, active and energetic, being prone to display lighting fast dashes across their fish tank. Danio fish are also very hardy, and are generally accepted as being very easy to care for. However, it is possible for Danio fish to become aggressive, especially if kept in a small tank. To avoid this behavior, be sure that your tank is large enough to give Danio fish adequate swimming space.