Best Five Beautiful Freshwater Fishes in the World

Fishes are always one of the most interesting species in the world because of their colorful patterns and beautiful fins. The fish need a range of physiological adaptations, to survive in fresh water. Only 41.24% species of fish are found in freshwater. There is the physiological difference between freshwater and saltwater fish. Their gills must be able to diffuse dissolved gasses while keeping the salts in the body fluids inside. If freshwater fish lost too many scales, will die. There are number of species of colorful fishes in the world as listed below:

1. Discus – Symphysodon, colloquially known as discus, these fish are a genus of Cichlids, which are native to Amazon River basin. This is among the most colorful fishes in the world. Their brain pattern marking and colors range from reds, creams and brilliant shades of bright blue make them more attractive as compare to others. They come in a single color as well as in pure white color. There are many natural species of discus that differs in patterns, coloring, and shapes.

2. Killifish - There are some 1270 different species of killifish, the biggest family being Rivulidae, containing more than 320 species. Because of living in temporary pools of water, the eggs of most killifish can survive periods of dehydration. The adults of some species can additionally survive out of the water for several weeks. The female Killifish are much less vibrantly colored than male ones. These fish are found mainly in fresh or brackish waters in the America. The majority of killifish are found in permanent streams, rivers, and lakes.

3. Gourami – Gouramis are a group of freshwater fishes that comprises the family. These fishes are native to India, Pakistan, and Korea. Many gouramis have a feeler-like ray at the front of each of their pelvic fins. They are almost the perfect aquarium fish as they are colorful, active and easy to care of. These are the one of the most colorful fishes in the world.

4. Male Betta – The Siamese fighting fish is also known as Betta. This is a species of gourami family, which is popular as an aquarium fish. It comes in a large variety of fin types and color. It is one of the most popular freshwater fish because we can easily take care of this. They have a long lifespan. They are available in monochrome colors, but a Betta displaying 2 or more colors with its large elegant flowing fins.

 

5. German Blue Ram – This is colorful and small sized dwarf child. It is popular aquarium fish. Yellow-green color makes up the main body and blue dots cover the fins. The German blue ram is not a suitable fish for newly set up aquariums, and should not be kept in an aquarium smaller than 75 L. There are red patches on the belly, near the eyes and tail fin.