CATDOLL : CATDOLL: What are some cheap and easy-to-raise large tropical fish?

What are some cheap and easy to raise large tropical fish?

The cheap and easy-to-raise large tropical fish include the map fish, parrot fish, arowana, walking stick fish, glass catfish and red and green tetra. Tropical fish are born in tropical waters. Tropical fish are divided into freshwater tropical fish and marine tropical fish. However, in the near-tropical and the north and south temperate waters at the junction of the tropical and south temperate waters, fish species with ornamental value are also classified as tropical fish, so their distribution also includes some subtropical areas. Tropical fish are narrow-temperature fish, and their requirements for water temperature are relatively strict, and they are also particularly sensitive to changes in water temperature.

What are the common marine fish, with pictures and species?

There are many types of marine fish, such as sharks, hairtails, groupers, salmon, tuna, cod, salmon, eels, sea bass, pomfret, etc. 1. Sharks: They are extremely dangerous marine fish, with large bodies, fast speeds, calcified bones, and diverse teeth. 2. Hairtails: They are ferocious, silver-gray in color, and are generally about 1 meter long. 3. Groupers: They are large and medium-sized warm-water fish, with many species, and generally live near coral reefs.

1. What are the common marine fish?

1. There are many kinds of common marine fish, such as sharks, cod, salmon, mackerel, eels, sea bass, grouper, pomfret, etc. These fish mainly live in the ocean, but their waters are different. Fish living on the surface cannot swim too deep, and fish living in the deep sea cannot reach the upper layer of the water. Some fish have the characteristics of migration, and they will swim to fresh water to lay eggs during the breeding season.

2. When raising marine fish, you must first prepare a large fish tank, and then transplant some algae, corals and other plants into the fish tank. When raising marine fish, you must first raise seawater. If the seawater is not raised well, it will make it difficult for marine fish to survive. At the same time, you must establish a nitrification system and a filtration system. This is the most important step.

3. Generally, the amount of organic nitrogen waste and ammonia produced by fish farming is relatively large. These organic nitrogen will produce highly toxic ammonia after being quickly decomposed by heterotrophic bacteria. These ammonia will harm the organisms in the entire water body. Therefore, when breeding marine fish, it is necessary to establish a nitrification system.

2. Common marine fish pictures and species

1. Shark

The most dangerous of all marine fish is the shark. This fish is relatively large and fast, with a cartilaginous skeleton. Although its skeleton is calcified, it has no real bone tissue. Sharks have an underdeveloped exoskeleton and a variety of teeth. Due to the large number of species, their body shapes vary from large to small.

2. Hairtail

The hairtail is very ferocious, with a silver-gray body and a black tail. It is generally about 1 meter long. It is mainly distributed in the western Pacific and Indian Oceans and is one of my country's main seafood. Hairtail has poor swimming ability and floats on the surface of the sea during the day and sinks to the bottom of the sea at night.

3. Grouper

Grouper is a large to medium-sized warm-water fish that is widely distributed in tropical and subtropical waters. There are many species of grouper, which usually live near coral reefs. As a solitary fish, grouper only swims in groups during the breeding season. This fish has the ability to change sex. It is female when it first matures, and becomes male after one year of breeding.

4. Salmon

Salmon, also known as the king salmon, is a cold-water migratory fish that spawns upstream and is mainly distributed in the back of the Pacific Ocean and the Arctic Ocean. This fish is about 60 cm long and will migrate during the breeding season. After entering the freshwater basin, they will stop eating and die after spawning.

5. Tuna

Tuna is a large ocean-going commercial edible fish. It is called tuna in Hong Kong and is called tuna in Portuguese in Macau. Tuna is mainly distributed in the Indian Ocean, the central Pacific Ocean and the central Atlantic Ocean. It is a tropical and subtropical oceanic fish. There are 8 varieties of tuna, most of which are huge in size. The largest can reach 3.5 meters in length and weigh 600-700 kilograms, while the smallest variety weighs only 3 kilograms.

6. Cod

Cod is one of the fish species with the largest annual catch in the world. It has very important edible and economic value. Pure cod refers to fish of the genus Cod, which are mainly divided into Atlantic cod, Greenland cod and Pacific cod. Usually the concept of cod is expanded to fish of the family Gadidae, of which there are more than 50 species, most of which are distributed in the northern Atlantic continental shelf. The more important species include haddock, blue cod, green shad, haddock, Norwegian cod and pollock.