Tropical fish is actually a fish lover. In order to distinguish it from other ornamental fish, these ornamental fish endemic to tropical and subtropical areas are collectively called tropical fish. They live in fresh water areas such as rivers, streams and lakes. Because tropical fish are mostly native to tropical areas, it is generally necessary to raise the water temperature to above 20℃. There are also some species that are not originally tropical, but subtropical or even temperate. People sometimes call them tropical fish. Of course, not all tropical fish exist in natural waters. Many beautiful tropical fish, such as colorful immortals and red parrots, have been artificially selected, hybridized and directionally cultivated in artificial waters for thousands of years. But compared with goldfish, the posture and habits of most tropical fish are closer to the natural state.
Tropical freshwater ornamental fish mainly come from rivers and lakes in tropical and subtropical regions. They are widely distributed, with a wide variety, different sizes, different physical characteristics, colorful and very beautiful. In recent years, it has become a common practice to raise tropical fish in tropical and subtropical regions. The so-called tropical fish, mostly refers to those dancing in the water, brightly colored tropical freshwater fish. The first country in the world to feed tropical fish was France. In A.D. 1868, Capogni introduced tropical freshwater fish to Paris for breeding. The English name of this fish is ParadiseFish (meaning fish in the sky or fish in the sky), and its scientific name is Macropodisopercularis. In fact, it is a wild fighting fish in South China, also called China fighting fish. This is the earliest tropical freshwater fish in the world as an artificial culture ornamental. Tropical fish are not entirely from tropical areas, and generally refer to ornamental fish that can be kept in aquariums except goldfish. Because tropical fish is full of vitality, bright color, bright color and lovely, people who raise it have a nourishing and pleasing effect.
According to the different origin, it mainly comes from three regions: first, many countries and regions in the Amazon basin of South America, such as Colombia, Paraguay, Guyana, Brazil, Argentina, Mexico and other places; Second, many countries and regions in Southeast Asia, such as Thailand, Malaysia, India, Sri Lanka and other places; The third is the three major lakes in Africa, namely, Lake Malawi, Lake Victoria and Lake Tanganyika. Among them, the Amazon river system in South America produces the most kinds and the most beautiful forms. For example, angelfish, known as the queen of tropical fish, was born there. There are many kinds of tropical fish in Malaysia, Indonesia, Sri Lanka, Thailand, Myanmar and other countries. In the south of Guangdong, Yunnan and other provinces in China, there are also beautiful ornamental fish, such as Baiyun goldfish and bluestar fish in Xishuangbanna. But there are few species, and the real tropical fish are basically imported from abroad. It is said that tropical fish raised for viewing originated in ancient Egypt and Rome about 2000 years ago. It has gradually spread all over the world in the past hundred years. Tropical fish have been raised and watched in China for more than 70 years.
The classification of tropical fish is very complicated. Due to geographical and historical reasons, there are great differences in the classification of tropical freshwater fish in different countries. According to preliminary statistics, there are no fewer than 20,000 species of tropical freshwater fish in the world, and there are about 2,000 species as ornamental fish. It is reported that there are about 500 species of tropical freshwater fish in China. At present, tropical freshwater ornamental fish are classified as bony fish in China, which are generally divided into several types.
Feeding management of tropical fish
The breeding and management of tropical fish is a comprehensive work. Including water, feeding, heat preservation, etc. It requires mastering the living habits of different kinds of tropical fish and improving the living environment of tropical fish.
1, feeding equipment
In addition to aquarium and water quality filter, tropical fish culture equipment also includes water quality circulating filtration equipment, heating equipment, oxygen increasing equipment, lighting equipment, pumping equipment and so on. A single aquarium can use a small circulating filter pump, 100-200W heating pipe, single-hole and double-hole air pump, fluorescent lamp and small submersible pump. For multiple aquariums, the equipment is more complicated. There are two kinds of circulating filtration equipment for tropical fish: in-box filter and out-of-box filter. Small aquariums mostly use in-box filters or low-power circulating filter pumps, while large aquariums mostly use out-of-box filters. The heating equipment for tropical fish has various electric heating tubes with different powers, such as 100W, 200W, 500W, 1000 W glass or stainless steel electric heating tubes with automatic temperature adjustment, and the heating equipment for large fish houses adopts heating, air conditioning and electric heating. Delivered by boiler room.
The aerobic equipment for tropical fish includes single-hole air pump, double-hole air pump, four-hole air pump and turbo aerator. For a single aquarium, you can choose a single-hole air pump. For multiple aquariums, you can choose two-hole or four-hole air pumps. Single-hole, double-hole or four-hole air pumps are all made of plastic materials, and the oxygen flushing in water is completed by the movement of rubber plugs. The rubber stopper will rupture or age after long-term use and should be replaced in time. Turbine oxygenator can be used to raise tropical fish in a large area. Made of metal material, with low failure rate and long service life. In addition, the auxiliary oxygenation equipment includes gas stone and oxygen pipeline.
The lighting equipment of tropical fish is mainly fluorescent lamps, in addition to halogen lamps and mercury lamps. For the lighting of a single aquarium, sometimes underwater colored lights can also be used. It is a small glass tube, which can be directly placed under water and adsorbed on the glass tube wall. Its lamp tube can emit red, blue, green, white and other different colors, and the beautification effect is good.
The pumping equipment of tropical fish mostly adopts low-power submersible pump made of all plastic materials. It is small and light, with power of 200W, 500W, 1000W, etc. , its lift is 5- 10 meter. When in use, it can be adsorbed on the cylinder wall, and the water in the aquarium can be drained in a few minutes, which is safe and reliable.
feed
(1) Foraging habit: The feeding water temperature of tropical fish is generally controlled between 24℃ and 28℃. In this temperature range, tropical fish have a strong appetite and grow rapidly, and are always maintained in a relatively stable state without being affected by external temperature changes. The bait of tropical fish includes fish worms, earthworms, earthworms, Tenebrio molitor, small live fish, pellet feed and so on. There are many kinds of tropical fish, and their sizes vary greatly, so the bait selection of different kinds of tropical fish is also different. Tropical fish with a body length of 3- 12 cm mainly feed on turtles, supplemented by earthworms, red worms and Tenebrio molitor. For tropical fish with a body length of 12 cm or more, soft-shelled turtles are small and have poor palatability, so they should choose larger bait, mainly red worms, water worms, Tenebrio molitor and small live fish. Tropical fish mainly feed on animals, and small species can also be domesticated as particles, and a few fish are mainly plants.
(2) Feeding frequency: The feeding amount of tropical fish should be determined according to the size and quantity of fish. Generally, domestic cultured tropical fish only need to be fed 1-2 times a day, and the feeding amount should be eaten within 5- 10 minutes. When raising tropical fish in large quantities, feed them 2-3 times a day; During the breeding period, fish are generally fed 3 to 4 times a day. Tropical fish, due to their small size and limited food intake, should be 7-80% full at a time. Increasing the frequency of feeding will promote the rapid growth of turtles. In most tropical fish, turtles are the main bait. When entomology is the main bait, the feeding amount should be controlled within LO-30 minutes. When the bait is mainly water earthworm, the feeding amount should be controlled within 5- 10 minutes, and each person should feed it for 2-3 times, and the fed water earthworm should be washed clean. When the bait is mainly small fish and shrimp, in principle, we should eat more meals and eat less. When tropical fish are replaced with new bait, the amount of bait should be gradually increased from less. Tropical fish should stop feeding 1 ~ 2 days before transportation.