Marine tropical fish is a less popular choice for aquarists due to their high cost. You need filtration systems and extra tools to create a livable environment for them. Unlike freshwater fish, commercial and captivity marine fish breeding require time, precision, and money. Marine and saltwater tropical fish are generally sourced from coral reefs. Plus, the fish thrive more in densely planted tanks similar to their native habitat in the Amazon. However, to keep the fish comfortable and thriving, you have to keep them in shoals of at least 8 to 12 or more. In captivity, they have a long life span – surviving between 3 to 10 years. The fish survives in cool waters with temperatures of about 68 to 82 degrees Fahrenheit and pH levels of 4 to 7.5. On the middle, posterior, and fin areas, the fish has distinctively colored stripes. The body has a silver-white abdomen and a light blue back. The bright body colors make it easily recognizable in dark black water. The small fish features an ultra brightly colored body. Native to the blackwaters and clear waters of the Amazon basin, the neon tetra is a popular freshwater aquarium fish. In captivity, they prefer warm aquariums around 80 degrees Fahrenheit. Angelfish are predators and prey on small fish. The distinct coloration acts as camouflage. Furthermore, their body features transverse stripes with distinct coloration. Their rather thin body allows them to hide in roots and plants. The dorsal and anal fins on the other hand boast a more elongated triangular shape. Angelfish features a laterally compressed and rounded body. Popular amongst aquarists, angelfish originate from the Amazon and Orinoco basins, as well as rivers in the Guiana Shield. However, they prefer soft and acidic waters with no nitrate. Cory catfish survive in a range of water conditions, even cool waters. Due to their timid nature, you should keep at least six or more shoals in one tank. This means that they pair well with different species in freshwater aquariums. They use their body armor and spines to protect themselves against predators. Whilst they have small bodies, cory catfish have body armor and sharp, venomous spines. Also known as corydoras, cory catfish measure anywhere between 1 and 4.7 inches long. The fish are available in a range of body shapes and colorations. Widely distributed in South America, cory catfish are small freshwater fish. In an aquarium, the fish can survive for up to 12 years. The water temperature and pH level should be around 80 to 85 degrees Fahrenheit and 7.4 to 8.0, respectively. In captivity, the fish need at least a 40-gallon tank. These fish are not a natural breed but rather, a hybrid one reintroduced to the wild.Įmerging from Malaysia, Taiwan, and Thailand, fish are now popularized in the US, Europe, and India. In fact, they get their name from the shape of their heads. You can easily identify the fish by their colorful bodies and uniquely shaped heads. Thanks to the vivid colors, the fish stand out in the tank. The ornamental aquarium fish features an attractive body marked with vivid colors. Similar to Arowana fish, flower horn cichlids are also one the most expensive freshwater tropical fish. But, they can still easily outgrow a small tank in just 8 to 10 months. Due to their size, they need an aquarium of at least 300 to 800 gallons. They are typically paired with fish such as clown knife fish, pacu, and jaguar cichlids. Thus, in the aquarium, they don’t have many pairing options. As adults, they are carnivorous and aggressive – often feeding on smaller surface fish. The scales come in mosaic canal patterns.Īrowana fish are solitary fish and only swim in packs when young. Also known as bony tongues, these fish feature a bony head and elongated body with large and heavy scales. In the U.S., Asian Arowana fish are even banned. In fact, the Asian Arowana fish species possess an endangered classification. There are 10 common types of Arowana fish from Asia, South America, Australia, and Africa. A single Arowana fish can sell for as high as $400,000. The most expensive tropical fish in the world, Arowana fish are widely distributed across the world. However, with freshwater tropical fish, this shouldn’t be a problem. With saltwater tropical fish, you need to control the sea salt conditions. Plus, they can survive in regular conditions with just tap water. They don’t need any complicated equipment. This is because they have pretty minimal environmental requirements. Commercially bred in farms or fished out of their natural habitats, the fish are easier to manage. Freshwater tropical fish are the most readily available and cheapest options in the market.
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