Two of the most popular types of aquarium fish would have to be betta fish and goldfish.
Betta fish are one of the most popular aquarium fish, mainly because of its appearance, since they certainly are not one of the easiest fish to keep in an aquarium. These fish are one of the most popular aquarium fish. This is mainly because of their appearance - certainly not because they are easy to keep in an aquarium.
Betta Fish are some of the most beautiful fish on the planet and they will catch the eye of your guests. They are known for their lovely colors and fins, with a wide range of colors available. These fish are a poor choice in any aquarium because they are easy targets for fin-nipping fish and they can nip fins of other fish themselves. In the wild, bettas prefer to be alone living in cloudy almost swamp like conditions.
Goldfish are normally active, swimming throughout the aquarium. Aggressive behavior (including fin nipping) is typical when new fish are introduced to the tank, but this usually stops after a few days. They are an excellent choice for the average water garden that is usually also full of a variety of potted plants. Lilies, Lotus, Iris, and submerged annuals - these all do well in a water garden pond with goldfish. They are very prolific in nature and in special breeding ponds, but don't expect any offspring in the classroom. They need lots of plants and other cover to propagate successfully.
Goldfish are the most common household pet and are often kept in bowls. Selective breeding has led to many different varieties of goldfish often changing their coloration away from the stereotypic goldish color. They are the most versatile and beautiful species of fish that are kept as pets today; and for the fishkeeping hobbyist, they offer something for everyone. No matter what level of experience you may have in fishkeeping, the goldfish can meet your needs. They are diggers and will scatter the fine sand onto leaves, injuring thin and less hardy plants. Roots and well-rounded river rocks are a good addition to the aquarium.
These two popular types of aquarium fish are easy to take care of, hence their popularity.