Tropical fish are born in tropical waters. However, in the near-tropical and the border with the north and south temperate waters, where there is ornamental value of fish species, also categorized as tropical fish, so its distribution also includes some subtropical areas. We are here to introduce the tropical ornamental fish species living in freshwater.
Tropical fish, in fact, fish enthusiasts to distinguish from other ornamental fish, the tropics, subtropics and other places endemic to this part of the ornamental fish collectively referred to as tropical fish. They live in rivers, streams, lakes and swamps and other freshwater waters. The old home of tropical fish, mainly in Southeast Asia, Central America, South America and Africa, among them, the Amazon River system in South America produces the most varieties, the most beautiful form, such as known as the queen of the tropical fish in the date fairy fish, was born there. Malaysia, Indonesia, Sri Lanka, Thailand, Myanmar and other countries, tropical fish species are also many. In China's Guangdong, Yunnan and other provinces in the south, there are also very beautiful ornamental fish, such as Baiyun goldfish, Xishuangbanna blue star fish.
The feeding management of tropical fish
The feeding management of tropical fish is a comprehensive work. It includes water use, baiting, heat preservation, etc. It requires mastering the living habits of different varieties of tropical fish, and improving the living environment of tropical fish in a targeted manner.
1. Feeding equipment
Tropical fish feeding equipment, in addition to aquariums and water filters, there are water recycling and filtration equipment, heating equipment, oxygenation equipment, lighting equipment, pumping equipment and so on. For a single aquarium, you can use a small circulating filter pump, 100-200W heating tube, single and double hole air pumps, fluorescent lamps, small submersible pumps and so on. For multiple aquariums, the equipment is more complex. Tropical fish circulation filtration equipment has two kinds of filters and filters outside the box, small aquariums more than the use of box filters or small power circulation filtration pumps, large aquariums more than the use of outside the box filters. Tropical fish heating equipment has a variety of different power of electric heaters, such as 100W, 200W, 500W, 1000W glass or stainless steel can be automatically adjusted temperature of the electric heaters, large fish room heating equipment used in the boiler room delivery of heating, air conditioning, electric heaters and so on.
Tropical fish oxygenation equipment has a single-hole air pump, double-hole air pumps, four-hole air pumps and turbine oxygenator. For a single aquarium, you can choose a single-hole air pump. For more than one aquarium, you can choose double-hole or four-hole air pump. Single-hole, double-hole or four-hole air pumps are made of plastic materials, they use the movement of the rubber plug to complete the water oxygen work. Rubber plugs after a long time, there will be rupture or aging, this time to be replaced in a timely manner. Large areas of breeding tropical fish can choose turbine oxygenator, it is made of metal materials, low failure rate, long service life. In addition auxiliary oxygenation equipment such as air stone, oxygen pipeline.
Tropical fish lighting equipment to fluorescent lamps, in addition to halogen lamps, mercury lamps and so on. Single aquarium lighting, sometimes can also be used underwater colored light, it is a glassy closed small lamp, can be placed directly underwater adsorption in the glass tank wall, its lamp can be issued in different colors, such as red, blue, green, white lights, aquascape effect is better.
Tropical fish pumping equipment more than the use of small power all-plastic material submersible pump, it is small and lightweight, power size 200W, 500W, 1000W, etc., its head 5-10 meters, the use of which can be adsorbed in the tank wall, can be in a few minutes in the aquarium water pumping, safe and reliable.
2. Baiting
(1) Feeding habits:
Tropical fish feeding water temperature is generally controlled between 24-28 ℃, in this temperature range, tropical fish appetite, rapid growth, it is not subject to changes in the external temperature changes, and always maintained in a relatively stable state. The baits for tropical fish include fish worms, earthworms, ciliated worms, yellow mealworms, small live fish and pellet feed. Tropical fish come in many varieties and sizes, so the choice of bait for different varieties of tropical fish is also different. For tropical fish with body length of 3-12 cm, the bait is mainly turtle worms, supplemented by earthworms, red worms and yellow meal worms. For tropical fish with body length above 12 cm, the turtle worm is small and poor in palatability, so it should be chosen as a slightly larger individual bait, mainly red worms, earthworms, yellow mealworms, small live fish, etc. Most of the tropical fish use animal bait. Most of the tropical fish to animal-based bait, small varieties can also be domesticated to pellet feed-based, and plant-based bait-based fish is rare.
(2) baiting times:
The amount of bait for tropical fish should be decided according to the size and number of fish. Home rearing of tropical fish, generally only 1-2 times a day baiting, the amount of bait to 5-10 minutes to eat up is appropriate. When keeping tropical fish in large quantities, the fish need to be baited 2-3 times a day; for breeding fish in the breeding period, the fish generally need to be baited 3-4 times a day. Due to the small size of tropical fish, limited food, each time the amount of bait to 7-8% full is appropriate, increase the number of times baiting to promote rapid growth of turtles. Most varieties of tropical fish, the bait to turtle worm-based. When the bait is mainly worms, the amount of bait should be controlled to be eaten within lO-30 minutes. When the bait is mainly water worms, the amount of bait control in 5-10 minutes to eat up, each person bait 2-3 times, feeding water worms should be rinsed clean. When the bait is mainly small fish and shrimp, in principle, should be fed more meals and less, tropical fish replacement of new bait, the amount of bait should be gradually increased from less. Tropical fish before transportation, to stop bait l ~ 2 days.
3. Water use
(1) Water exchange:
Water exchange refers to the partial water change which is a simple and effective method often used in tropical fish breeding. Before mixing the water, turn off the power supply of the heater, air pump, circulating filtration pump and other electrical appliances in the aquarium, then use gauze to wipe off the moss attached to the glass or scenery on the four walls of the aquarium, and let the water stand for 15 minutes, the suspended matter in the water will all be sunk to the bottom of the tank, and then gently suck out the bottom of the dirt with a rubber tube. -The amount of water sucked out is about 1/4 to 1/3 of the total amount of water, and then the new water with the same temperature will be injected slowly along the wall of the tank.
(2) water change:
Water change refers to the total replacement of feed water, it is the simplest and most effective way to change the water quality, but the workload of water change is large, especially when the aquarium is small and scenic, the process is complex and cumbersome. Before changing the water, cut off the power of all electrical appliances in the aquarium, take out all the fish and scenery, and release the water. After the aquarium is rinsed out, put all the scenery in place and put in new water for spare.
Why are tropical fish so colorful?
Because every fish has a certain color, and their colors are almost always adapted to their own protection. Tropical fish are no exception, and their radiant colors are in harmony with the environment in which they live. This makes it easy for them to hunt for food and escape from their enemies.
Movie:
Directed by:
Yu-Hsun Chen
Starring:
Ying Wen
Genre: Comedy
More foreign titles:
Redai yu
Length: 107 min
Country Country/Region:Taiwan
Release Date:August, 1995 Switzerland
Synopsis: The plot describes the kidnapping of a rich kid for ransom by a friend of Lin Zhengsheng's, who is a roughneck worker, and the kidnapping of a high school student. When his friend died in a car accident while collecting the ransom money, the thieves transported the two meat coupons back to the southern countryside to hide, and at the same time, they tried to collect the ransom money with Wen Ying and others. At this time, the student was facing the Joint Entrance Examination, and the thieves didn't want to hold up his future, so they went everywhere to prepare his homework for him, and in the end, after solving the danger of kidnapping, they sent the child back to Taipei to sit for the exams.
The daydream of Keung in the movie is a fantasy that many teenagers experience when they are burdened with heavy academic pressure, and the bizarre experience that develops later in the story is more like a daydream that is generally carried out in a sensational way. He finally had a chance to escape from his studies, but that chance was kidnapped. During that period of time, he lived a life different from that of the average candidate, and gradually learned that there are many people in the world who have lost the ability to dream. The friend of the thief died in a car accident while collecting the ransom money, so he transported Ah Qiang back to the southern countryside to hide, while thinking of ways to collect the ransom money with Wen Ying and others. At this time, the national high school students are facing the Joint Entrance Examination (JEE) juncture, and the stupid thief doesn't want to hold up his future, and even ran around to prepare his homework for him, and finally, after solving the kidnapping risk shadow, the child will be sent back to Taipei to take the exams.