How to keep a good tropical fish?

The temperature should be enough And also pay attention to the cleanliness of the water, do not starve to death

Tropical fish feeding management

Tropical fish feeding management is a comprehensive work. It includes the use of water, baiting, heat preservation, etc. It requires mastery of the habits of different species of tropical fish, targeted to improve the living environment of tropical fish.

1. Feeding equipment

Tropical fish feeding equipment, in addition to aquariums and water filters, there are water circulation 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 are used in the box filter or small power circulation filtration pump, large aquariums are used outside the box filter. Tropical fish heating equipment has a variety of different power of electric heaters, such as 100W, 200W, 500W, 1000W of glass or stainless steel can automatically adjust the 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 color light, it is a glass closed small lamp, can be placed directly underwater adsorption in the glass tank wall, the 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, the power size of 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:

The feeding water temperature of tropical fish is generally controlled between 24-28℃, in this temperature range, tropical fish have a strong appetite, rapid growth, it is not affected by changes in the external temperature, and it is 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 the 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

(1) water:

Water is part of the water change which is often used in tropical fish breeding easy and effective method. Before the water, the aquarium heater, inflatable pump, circulating filtration pump and other electrical appliances off the power supply, and then use gauze to wipe the four walls of the aquarium glass or scenery on the moss attached to the water to be static for 15 minutes, the suspension of all the water to the bottom of the tank, the bottom of the dirt with a rubber tube gently sucked out. -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 rinsing the aquarium, put all the scenery into place and put in new water for spare.

Beginning to raise tropical fish preferred peacock fish

Peacock fish is a small tropical ornamental fish, generally 3 to 5 cm in length, the fish body is delicate and delicate, swim agile and lively, colorful body. It is mainly from South America, Brazil, Venezuela, Guyana and the West Indies and other places, according to its different characteristics and is divided into common peacockfish, swallowtail peacockfish, long-tailed peacockfish, piano tailed peacockfish and yellow peacockfish.

It should be said that, among the many varieties of tropical ornamental fish, the peacock fish is not considered a noble fish species, both its selling price and the requirements of the surrounding living environment are not high, but it is because of the lively, beautiful and loved by people. Especially the male fish is more beautiful, in the greenish-brown body mixed with red, orange, yellow, green, green, blue, purple colors, as if the rainbow in the sky, so it also has a nice name - rainbow fish. At the same time, because of its abdomen has several small blue round spots, round spots around the lighter color rings, much like the peacock open screen on the eye-shaped spots, so there is also a "peacock fish," the name of the United States.

Some fish buyers told reporters that the peacock fish is popular, largely due to its gentle and lively temperament, will not fight with other fish, suitable for mixing with some of the fish without aggression; and it is not too selective of food, egg yolks, steamed bread crumbs, etc., can be fed, but the best feeding of artificial feeding of fish worms, nematodes, and other live bait; at the same time, it is on the water quality, the requirements of water temperature is not high, very easy to raise! It is very easy to feed and survive.

Generally, purebred peacockfish are larger, with large and spreading caudal and dorsal fins, more pure colors, more distinctive features, and higher prices, ranging from about 10 to 50 yuan per pair due to their good and bad strains; while hybrids or degenerate species are the opposite, and cheaper, generally only a few dollars per pair can be purchased. However, for first-time tropical fish keepers, it is still more cost-effective to buy hybrids and degenerate species, because this can accumulate a lot of experience in fish farming.

Also, it is best to first determine whether you are buying the fish for ornamental purposes or for breeding. If it is just for ornamental purpose, you can pick individuals with bright colors, grown tail fins and normal development of all fins; while if it is for breeding good peacockfish species, it is better to pick young and energetic peacockfish because fully matured peacockfish are not suitable for breeding although they have big tail fins and bright patterns.

Generally speaking, the principle of selecting peacockfish is not much different from that of selecting other fish, which is only to require that there is no abnormality on the body surface, no wounds, no broken fins and limbs, no tightness in all fins, no proliferation of organisms such as white hairs and white dots, the desire to eat, and quick response, and it is best to select individuals that have not been injured or died in the whole tank. However, a key point in purchasing peacockfish is to choose a male peacockfish that is as large as possible, with a large and spreading tail fin, and a lively swimmer. Usually buy two or three months old peacock fish.

In addition, while shopping for peacock fish, don't forget to buy another aquarium. The aquarium for peacock fish should not be too big, usually 60 centimeters long, 30 centimeters wide and 40 centimeters high, and you must pay attention to the water test before you buy to make sure there is no leakage before you buy.

After choosing a peacock fish, the next step is the bait. Peacock fish does not require much bait, usually can use water flea, water silk worm or with pellet feed.

When all the shopping is done, it's time for the process of breeding peacock fish.

Why are tropical fish so colorful?

Because every fish has a certain color, and their colors are almost always adapted for 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 after being burdened with heavy academic pressure, and the bizarre experience that develops after 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. Benzene thief's friend died in a car accident while taking the ransom money, so he transported Ah Qiang back to the southern countryside to hide, while thinking of ways to take the ransom money with Wen Ying and others. At this time, the national high school students are facing the Joint Entrance Examination juncture, the stupid thief does not want to hold up his future, but even ran around to prepare his homework, and finally after solving the kidnapping risk shadow will be the child sent back to Taipei to take the exams. Tropical fish is one of the favorite home rearing fish species. It is not difficult to keep tropical fish, as long as there is a suitable temperature, fresh air, clean water, adequate feed and bright light on the line. Usually, the water temperature of tropical fish life should be maintained between 20 ℃ -30 ℃, tropical fish are particularly sensitive to changes in water temperature, the temperature difference between day and night does not exceed 4 ℃. Of course, different kinds of tropical fish have different requirements for water temperature, but the water temperature is too high, the water fungus will reproduce in large quantities, the fish's metabolism is overly active instead of getting sick.

The requirements for water quality are stricter for tropical fish than for goldfish. Tap water used in the city contains chlorine and bleach, so it should be dried in the sun before use, or at least 1/3 of the old water should be kept in the fish tank when water is changed. Well and river water should be boiled and sterilized and cooled before use, and water quality can also be maintained through biological purification. Tropical fish live in a light environment for a long time, so light is very important to tropical fish. Light can promote photosynthesis of water plants in the container, speed up the manufacture of oxygen and absorption of carbon dioxide, increase the amount of oxygen dissolved, and promote the growth of fish. In a room with sunlight, it can receive about 1-2 hours of not too strong sunlight every day. But not subject to strong direct sunlight, such as insufficient light, available light supplement, such as 40 watt-60 watt fluorescent lamps, available 5-6 hours a day, can also be used to control the temperature of the water with electric heaters.

The feeding of tropical fish is basically the same as goldfish. Tropical fish digestive ability is strong, generally feed once a day is appropriate, more feeding in summer, less feeding in winter, such as found in the fish swallowed bait soon and spit out, indicating that the fish have eaten a lot of food, you should stop feeding.

Keeping tropical fish is not complicated, as long as the above mentioned, you will be able to keep them.

Necessary equipment for keeping tropical fish

(1) Fish tank: It is the place where tropical fish grow and move around. Keeping tropical fish tank must choose a slightly larger rectangular glass fish tank.

(2) suction pipe: used to change the water when sucking out the bottom of the fish tank dirty, with a soft rubber tube and glass tube connected and become. The length depends on the height of the aquarium. Generally take one meter two to one meter five.

(3) thermometer: used to measure and regulate the water temperature of the fish tank.

(4) Fish net: used to catch and transfer tropical fish.

(5) glass bucket: put the bulb into the glass bucket and sink it into the fish tank for heating and lighting. The mouth of the glass bucket must be 100mm above the water surface to prevent the fish from jumping in.

(6) electric heaters: used to increase the temperature of the fish tank in winter.

(7) Air pump: to drive out the carbon dioxide in the aquarium and increase the oxygen capacity of the water.

(8) Filter: Filter out the dirt in the aquarium, keep the water clean, and play a dual role in increasing the amount of oxygen to purify the water.

(9) thermostat: used to automatically control the temperature in the aquarium, can keep the temperature constant for a long time.

(10) food bucket: prevent fish food floating on the water surface, which is favorable for fish predation. It can also prevent fish food from falling into the bottom of the water and drilling into the water plants, making the water plant sand black and corrupting the water quality.

(11) remove dirt liquid: made of plastic sheet. Used to scrape away the dust and oil on the surface of the aquarium.

Beginning to raise tropical fish preferred peacock fish

Peacock fish is a small tropical ornamental fish, the general body length of 3 to 5 centimeters, the fish body is delicate and delicate, swim agile and lively, body color colorful. It is mainly from South America, Brazil, Venezuela, Guyana and the West Indies and other places, according to its different characteristics and is divided into common peacockfish, swallowtail peacockfish, long-tailed peacockfish, piano tail peacockfish and yellow peacockfish.

It should be said that, among the many varieties of tropical ornamental fish, the peacock fish is not considered a noble fish species, both its selling price and the requirements of the surrounding living environment are not high, but it is because of the lively, beautiful and loved by people. Especially the male fish is more beautiful, in the greenish-brown body mixed with red, orange, yellow, green, green, blue, purple colors, as if the rainbow in the sky, so it also has a nice name - rainbow fish. At the same time, because of its abdomen has several small blue round spots, round spots around the lighter color rings, much like the peacock open screen on the eye-shaped spots, so there is also a "peacock fish," the name of the United States.

Some fish buyers told reporters that the peacock fish is popular, largely due to its gentle and lively temperament, will not fight with other fish, suitable for mixing with some of the fish without aggression; and it is not too selective of food, egg yolks, steamed bread crumbs, etc., can be fed, but the best feeding of artificial feeding of fish worms, nematodes, and other live bait; at the same time, it is on the water quality, the requirements of water temperature is not high, very easy to raise! It is very easy to feed and survive.

Generally purebred peacockfish individual larger, tail fin and dorsal fin large and spreading, color is more pure, the characteristics of the more distinctive, the price is also higher, due to its strain of good and bad about in each pair of 10 yuan to 50 yuan; and hybrid or degradation of the species is the opposite of its price is also cheaper, generally as long as a couple of dollars per pair can be purchased. However, for first-time tropical fish keepers, it is still more cost-effective to buy hybrids and degenerate species, because this can accumulate a lot of experience in fish farming.

Also, it is best to first determine whether you are buying the fish for ornamental purposes or for breeding. If it is just for ornamental purpose, you can pick individuals with bright colors, grown tail fins and normal development of all fins; while if it is for breeding good peacockfish species, it is better to pick young and energetic peacockfish because fully matured peacockfish are not suitable for breeding although they have big tail fins and bright patterns.

Generally speaking, the principle of selecting peacockfish is not much different from that of selecting other fish, which is only to require that there is no abnormality on the body surface, no wounds, no broken fins and limbs, no tightness in all fins, no proliferation of organisms such as white hairs and white dots, the desire to eat, and quick response, and it is best to select individuals that have not been injured or died in the whole tank. However, a key point in purchasing peacockfish is to choose a male peacockfish that is as large as possible, with a large and spreading tail fin, and a lively swimmer. Generally buy two or three months old peacock fish.

In addition, while shopping for peacock fish, don't forget to buy another aquarium. The aquarium for peacock fish should not be too big, usually 60 centimeters long, 30 centimeters wide and 40 centimeters high, and you must pay attention to the water test before you buy to make sure there is no leakage before you buy.

After choosing a peacock fish, the next step is the bait. Peacock fish does not require much bait, usually can use water flea, water silk worm or with pellet feed.

When all the shopping is done, it's time for the process of breeding peacock fish.

Beginning to raise tropical fish "no zone"

Just bought the fish, in the habit of new environments, you can begin to feed, generally put the fish in the tank half a day later, if you find that the fish began to peck at the wall of the tank or the bottom of the tank covered with sand, that is to say, you can begin to feed. Some fish refuse to eat when they change their environment, so it is important to feed the fish the feed they like, which can be balanced with artificial feed and living feed. Be careful with portion sizes and avoid leftover scraps, which can rot and damage water quality.

Causing tropical fish disease, death of several reasons:

1, the water temperature drastic changes --- suitable for tropical fish survival of the optimal temperature of 25 ℃, but the temperature requirements of different species there are differences in the temperature, some of them to be as high as 30 ℃ or so, there are some favorite 20 ℃. Therefore, on average, 25℃ is a generally acceptable temperature. In addition, it is necessary to avoid drastic changes in water temperature, generally allowed to change the temperature range of 2 degrees.

2, stocking density is too large --- many people see aquariums can put a lot of lovely fish in a fish tank, so also at home in the fish tank to raise a lot of fish, this feeding method, no matter which kind of fish will die. If you are keeping many different kinds of fish, you must consider the space for each kind of fish and reduce the number of fish. No matter what kind of fish you have, it is never a good thing to have a small tank with a lot of fish. Keeping tropical fish is very similar to the principle of keeping goldfish, the requirement of keeping a relatively wide water surface, and to keep a normal ratio with the number of keeping to ensure that the tropical fish have a sufficient supply of oxygen.

3, the type of feed --- tropical fish diet varies by species, can be roughly divided into animal, plant, omnivorous 3 categories. So we must understand the fish in the tank, what type, like to eat what food, categorized feeding.

4, disease --- tropical fish are sick for many reasons, including infected by bought sick fish, because the temperature is too low triggered by the white spot disease and water quality due to the corruption of food or fish feces and dirt decomposition due to the deterioration.

Newly purchased tropical fish often with germs or parasites, because the condition is mild, has not yet appeared more obvious disease, it is not easy to notice when you buy, if you do not use medication directly into the aquarium, as soon as 2-3 days, as slow as 1 week to 2 weeks will be onset of the disease, or even cause death. Even if the newly purchased tropical fish is healthy, the capture and road transportation will sometimes cause injury to the fish body and bacterial infection. Therefore, it is a very important job to prevent disease and disinfect newly purchased tropical fish.

There are two more commonly used anti-disease and disinfection drugs, the first is table salt, which is safer, more effective and comes from a convenient source. Every 10 kilograms of water plus 100-300 grams, that is, formulated as 1-3% concentration of salt water, disinfection 5-20 minutes or so, the length of the bath time according to the water temperature depends on the high and low, can kill most of the germs and parasites.

The second is potassium permanganate, which can be added directly to the fish tank. The concentration of the drug is 10 kilograms of water with 0.03 grams of potassium permanganate. 0.03 grams of weight potassium permanganate weighing is not convenient. Therefore, first weigh 1 gram of potassium permanganate fully dissolved in 1 kilogram of water, i.e., formulated into one-thousandth of the concentration of the drug solution, stored in a Coca-Cola bottle for backup, and then use a pipette or a syringe to suck up 30 milliliters of potassium permanganate solution to add to the 10 kilograms of water, 24 hours after the use of the drug to change the water. However, it should be noted that for small tropical fish. Potassium permanganate is more toxic, after the drug should pay attention to the observation of tropical fish activity state, a found abnormal, immediately rescue, that is, a large number of water changes or will be out of tropical fish.

The accumulation of organic matter in the tank, such as bait and feces, can cause deterioration of water quality. Organic matter exists in two forms in the water column. One is particulate solid organic matter that has not yet been dissolved, and the other is organic matter that has been dissolved in the water. Dissolved organic matter by bacterial decomposition will become toxic ammonia nitrogen and nitrite, if the water body grows a sufficient number of beneficial bacteria (such as nitrifying bacteria) will be toxic ammonia nitrogen and nitrite decomposition into non-toxic substances (nitrate). Therefore, water purification has two purposes: ① the solid organic matter has not yet dissolved filter throw; ② cultivate a sufficient number of nitrifying bacteria, decomposition of toxic ammonia nitrogen and nitrite in the water body.

There are two specific treatment methods:

The first, the use of water treatment cycle equipment. Large and medium-sized aquariums use circulation filtration equipment, small aquariums can use biochemical cotton. Commercialized water treatment circulating filtration equipment of many kinds, there are built-in type, external type, etc., you can also make their own, the general structure consists of three parts. ① stainless steel or plastic made of cylindrical shell; ② cylinder put filter cotton, quartz sand, plastic biochemical ball or biochemical ceramic ring, etc.; ③ small pumps and pipes. Filter cotton, quartz sand is the role of large particles in the body of water to retain organic matter, and therefore often need to be cleaned.

Biochemical ball and ceramic ring role is as a carrier for the cultivation of beneficial bacteria, in professional terms is to cultivate biofilm, mainly to cultivate a sufficient number of beneficial bacteria, the water body of toxic ammonia nitrogen and nitrite decomposition of non-toxic nitrate.

Small aquariums can be equipped with 1-2 biochemical cotton and an inflatable pump. The biochemical cotton has the function of filtering solid organic matter and cultivating bacteria.

The second is to regularly add beneficial bacteria. There are many varieties of beneficial bacteria, common photosynthetic bacteria, nitrifying bacteria, bacillus and so on. Most of the products sold on the market are compound bacteria. Such as a Japanese product called EM, there are four categories of more than 80 species of bacteria composition.

Some people have done experiments, regularly add beneficial bacteria, the water in the tank can be a year without changing the water

Some of the necessary conditions for breeding tropical fish

1, water

1, water quality

All the water in the natural world contains more or less different chemical compositions, and some chemicals will directly affect the growth and survival of the fish, the tropical fish on water Tropical fish have higher requirements for water. Tap water, river water, well water, lake water, etc. can be used directly to raise goldfish, but can not be used directly to raise tropical fish, otherwise the fish will get sick and die.

The so-called water quality mainly refers to the hardness and pH of the water.

The hardness of water is based on the amount of calcium, magnesium and iron salts in the water. Divided into hard water, soft water and neutral water well water, spring water belongs to hard water; tap water, river water is mostly neutral water; rainwater belongs to soft water. Breeding tropical fish should use neutral water, but the city's tap water, although the pH is basically in line with the requirements of tropical fish life, but because of the water plant in the treatment of water often need to add some chemical disinfectants and purifying agents, should be often contained in this water travelers Kang Mu around? The water often contains travelers' Kangmu round? What's the reason for this? Trance small Guo? The third party is a member of the United States. The third party is the third party that is not a member of the United States, and the third party is not a member of the United States, and the third party is not a member of the United States. /span>2~3 days, or in the shade and lack of light to dry a week before you can use.

2, water change

Fish in the survival of a constant metabolism, to continue to excrete feces, feed the fish bait is also constantly oxidizing and decay, these will affect the water quality, so we must often change the water to the tank in a timely manner to keep the water quality fresh. Water change for part of the water change and all the water change. Partial water change is also handed over to the water. Water is drawn from the tank how much water should be supplemented how much water, water does not need to fish and water plants from the tank, generally how much water to not more than a quarter of the total amount of water in the tank. Pay attention to the water temperature of the newly added water, as far as possible, and the original tank water temperature is the same. The number of times the water, fall and winter seasons, one to two times a week, spring and summer seasons, two to three times a week, the specific number of times how much according to the turbidity of the water in the fish tank, filtering conditions can be appropriate to reduce the number of times the water quality is clear, filtering conditions can be appropriate to increase the number of times, but can not be too frequent, otherwise the fish will be sick.

Temperature

Temperature is the most important condition for the survival of tropical fish, there is no suitable water temperature fish can not survive, tropical fish on the temperature of the water requirements of the more demanding, tropical fish on the temperature of the water is also extremely sensitive.

The water temperature for tropical fish is generally 20~30℃. But different kinds of tropical fish have different water temperature requirements. For example, peacock fish, red swordfish, black Mary and other species can tolerate a water temperature of about 10 ℃ without dying, while swallowfish, tiger fish and other water temperature below 18 ℃ will die. The vast majority of tropical fish and its sensitive to water temperature, water temperature changes ± 2 ℃ and will get a cold, water temperature fluctuations for a long time up and down instability, the fish will suffer from a variety of diseases, therefore, we should try to maintain a constant water temperature. Therefore, the water temperature should be kept as constant as possible. The water temperature should not be too high, as the bacteria in the water will reproduce too fast and affect the water quality. The normal temperature for most fish is 20~24℃, and the breeding water temperature is 25~28℃. There are two common ways to control water temperature, which are categorized as natural control and artificial control.

Natural control is to place the fish tank in a sunny room, so that the tank receives sunlight to increase the water temperature. Fish tank volume of some of the water temperature change is relatively small, and vice versa, the tank is small water less water temperature change is big, in the room conditions allow, as far as possible, let the fish tank bigger for good.

Artificial control of the water temperature is mainly the use of fireplaces, kangkang, heating and other heating measures to heat, in recent years, the market is the use of electric heating appliances continue to increase, is a better heating method, most of the products have an automatic temperature control function, should be preferred to such products.

Three, oxygen

Oxygen is needed for the survival of any living thing, without oxygen, there is no life, the survival of tropical fish is also inseparable from oxygen. Fish survival needs of oxygen, is through the gills of the microvascular absorption of dissolved oxygen in the water to get, and then through the blood circulatory system to bring and mention a part of the carbon dioxide discharged is also through the microvascular gills. The amount of dissolved oxygen in the water directly affects the growth of the fish, so it is necessary to ensure that there is enough dissolved oxygen in the water. Dissolved oxygen in the water in addition to water and water changes to obtain, but also can be used in the water photosynthesis of aquatic plants to produce oxygen.

The market has a special oxygen apparatus - air pumps, the use of air pumps to add oxygen that is convenient and simple, according to the size of the fish tank to choose the appropriate air pump. The price is relatively cheap.