Water skills
1; First, clean the transparent fish tank (other utensils are ok, but be careful to be transparent)
2; Use soda water. If there is no soda water, you can use cold boiled water instead. But remember never to use tap water, because there is disinfectant chlorine in tap water, and small goldfish can't eat it.
3; Drink as much water as possible to ensure good oxygen content and full freedom of fish. It's best to buy a small air pump for fish farming.
Feeding skills
1; If you don't have the conditions to keep the water temperature in the fish tank, you should always give the goldfish plenty of sunshine in this cold winter.
2; Put some rice grains and some aquatic plants in the fish tank, but remember that the aquatic plants must be in moderation.
3; When feeding, you can throw some fish worms or white-flour steamed bread, but you should feed less and more each time.
In addition, it should be noted that small goldfish are particularly prone to white spot disease (a parasitic disease). If you find something like this on the fish or a wound with scales falling off, remember to go to the flower and bird market to buy a kind of "yellow powder" (mainly anti-inflammatory), and then drop some methyl blue liquid medicine (mainly to remove parasites) when changing the water for the fish. Under your careful care, the little goldfish will definitely bring you the same happiness.
Feeding method
First, prepare the fish container and dry the water in advance. If you want to spread sand and grass, you need to add water slowly after everything is ready. It takes about a day or two to dry the water. Then put the plastic bag containing goldfish and "old water" into the fish tank and hang it in the middle and upper water. After about half an hour, it is estimated that the water temperature in the plastic bag is close to that in the aquarium. At the same time, add 1 teaspoon salt to the water for sterilization. Wait until the fish get used to 1-2 days in the fish tank before feeding the fish. If it is necessary to increase the stocking quantity, the new fish should be put in another container for 7- 10 days, and then put together with the fish in the original fish tank to avoid bringing in pathogens.
3. Bait method
There are two kinds of bait in goldfish feeding period: artificial bait and natural bait. Feeding must be strictly timed and quantified to keep the water fresh. Generally speaking, the feeding frequency should be 1-2 times a day,/kloc-0 times in the morning and evening, and/kloc-0 times in the evening. In addition, the time, frequency and quantity of feeding should be determined according to the following principles:
(1) When the weather is fine, the daily warm air is mild, the dissolved oxygen in the water is sufficient, and the water temperature is suitable, you can throw more bait appropriately.
(2) When the water quality is thin and the fish has a big appetite, you can feed more.
(3) If the fish is sick, or the species is delicate and precious, throw less coarse bait and throw some fine bait instead.
In order to distinguish the saturated digestion and absorption of goldfish, it can be distinguished according to the color of fish manure. Green, brown or black fish droppings indicate that fish are suitable for feeding and well absorbed. If the fish manure is white, it means that the fish is full.
To raise goldfish indoors, we must first solve the lighting problem:
Because the beauty of goldfish is not only the shape, but also the color, and to ensure the bright color, it is necessary to ensure that the fish body receives strong light, otherwise the color of the fish body will become more and more dim. Moreover, it is easy to get sick, so the goldfish feeding place should have sufficient light sources, especially ultraviolet light sources.
If the temperature is suitable, you can put the fish tank on the balcony or in front of the window during the day to ensure sufficient light. Therefore, mastering the temperature suitable for goldfish growth and ensuring its sufficient illumination is a great guarantee for keeping goldfish indoors.
Second, master the time and method of feeding:
Make sure to eat within 1-2 hours every day, and don't eat too much. Feeding time: spring and summer should be around 7: 00 in the morning, and the sun will start to shine on the fish tank, around 8: 00 in late autumn and winter, and at 9- 10 in severe cold. Remember, you can't eat a lot at night. Even if goldfish are obviously foraging, they can only eat in small quantities around 3 pm. In addition, some kinds of fish, such as Paoyan and Chaotian Dragon, have poor foraging activity, so we should take care of them as much as possible and feed some live fish and worms.
Third, pay attention to grasp the appetite of fish:
Fish with large activity and strong vitality can feed more food. On the contrary, less investment; It can be determined by trial feeding, that is, if the goldfish is still foraging after eating for half an hour, it means that the feeding is too little, and it can be increased the next day until the goldfish 1-2 hours is finished, and there is no phenomenon of foraging or "floating head", which means that the feeding is just right. If you haven't finished eating for three hours, there will be a "floating head" phenomenon, which means you have eaten too much. Note that goldfish are hungry, and fresh food is good for your health.
Raise water before raising fish.
For fish farmers, there are four kinds of water: first, fresh water, that is, tap water that has just been aired or well water that has been newly drilled. Although this kind of water is clean, it is very different from the environment in which fish live in nature. Because there is no nitrifying bacteria community in the water, fish excreta and scattered food residues decompose into ammonia after corruption, and fish are easy to be poisoned. Second, the old water, light green or amber, is rich in humus and beneficial microorganisms and algae, and has established a good ecological circulation system. After nitrogen cycle, it is decomposed into nitrate which is harmless to fish. This kind of water is extremely beneficial to the growth of fish. The third is green water. There are too many organic matters in the water, cyanobacteria, green algae and brown algae multiply in large numbers, and the content of bacteria and microorganisms increases sharply. The water is thick green, and sometimes it smells bad, which can easily lead to the death of the whole tank of fish. The fourth is to return to clear water, also called biting clear water. It is because there are too many algae and microorganisms in the green water, which consumes the oxygen in the aquarium, causing the death of algae and aerobic bacteria, and turning the water into stagnant water without oxygen and a large number of anaerobic harmful bacteria.
It can be seen that not all water is suitable for goldfish's life, and the most suitable water for goldfish's growth is old water. Hydroponics is the process of changing new water into old water.
At present, most of the water we use for fish farming is tap water, so the first step of water cultivation is to remove the toxic substance-chlorine from tap water. The method of chlorine removal is relatively simple. After the water is filled, let it stand for 2-3 days, or dry it 1 day (in case of urgent need, add 0.5% per 100 kg of water). 63g of baking soda, namely sodium thiosulfate, can be used immediately).
After the fresh water is dried, it should be put into a tank for filtration, so that the water pump can turn the still water into flowing water, and then put the fish into the tank. "Broken tank" is to put a few cheap, strong and easy-to-raise fish into a new tank. After a few days, fish excrement will be decomposed into ammonia in water, which is the same as adding ammonia to tap water. Too much ammonia will kill fish, so the most important thing to raise water is to remove ammonia from the water. Usually we use nitrifying bacteria to remove ammonia from water. Nitrifying bacteria can be added to water, but they need attachments to survive in water. If there is no suitable attachment, it is not good to add more nitrifying bacteria. They will die in water, and nitrifying bacteria usually attach to filter cotton or bottom sand. In fact, running water will naturally produce nitrifying bacteria in a few days, which is also the most commonly used method to cultivate nitrifying bacteria. The cultivation of nitrifying bacteria is the second step of hydroponics.
Here is a brief introduction to the subtle chemical changes of nitrogen cycle and the working principle of nitrifying bacteria.
After the fish enters the tank, it will discharge ammonia and other wastes into the water, and the ammonia concentration in the water will increase, so the nitrifying bacteria in the domestic water can decompose ammonia (note: it takes a week or more for nitrifying bacteria to form, so the fish will be seriously injured during this time). When the nitrifying bacteria community is formed, the ammonia concentration will be reduced to zero.
However, it is not that simple, because nitrifying bacteria can only convert ammonia into nitrite, but it is also toxic to fish! So we should understand that the concentration of nitrite is increasing, while the concentration of ammonia is decreasing. So don't think that you can sit back and relax after the ecology is established. In order to reduce nitrite, it is necessary to change water regularly and quantitatively to reduce its concentration, so as to maintain a relatively stable ecology and keep the water in an old state.
I also want to tell you that old water is what we pursue, and green water also has many benefits for goldfish. For example, green water can darken the color of goldfish, but there are too many algae in this water to see fish and it is not suitable for viewing. Moreover, when there are too many algae, the fish will lack oxygen, so we should pay attention to controlling the algae content in the water when raising goldfish with green water.
Choose goldfish
Choose fish with strong bodies and bright colors.
If you choose any kind of goldfish, you should choose the one with broad and firm body, complete chest, abdomen and caudal fin, and wide tail. Fish without dorsal fin should have a smooth back and no incomplete dorsal fin or nodule. The colors of fish should be red and delicate, white and pure white, blue and blue, black and black, and the colors of flowers should be harmonious and the patterns should be meticulous. Only those with blue can be called Wuhua. Some fish are half red and half black, or those whose bodies are red and the edges of their fins are black. They look beautiful at the moment, but in fact they will soon become all red, so be prescient.
When choosing fish, choose those that are unique in characteristics, body shape or color and observe them.
Choose healthy and disease-free fish.
Generally speaking, swimming in the pool (basin) is active, gregarious and plump. The pectoral fins and ventral fins are open and often paddle, and there are no white spots and white fluff-like mucus on the body. The tail and scales are congested and festered, and they do not often float on the water, nor do they lie on their side, stand upside down or sink to the bottom. Black and thick shit is healthy fish, and fish are looking for food.
1 filtration system: Due to the high density of fish farming in China, it is difficult to remove impurities and wastes from water simply by decomposing water itself. Establishing a good filtration system can effectively maintain water quality. A good filtration system can integrate chemical, biological and physical filtration methods. Chemical filtration relies on special drugs to condense tiny suspended impurities in water, so as to precipitate them or physically filter them out. Bio-filtration is to use beneficial biological flora to decompose waste in water and decompose harmful substances into harmless substances. Physical filtration is to adsorb and filter out impurity particles through the tiny pores of the filter material. According to the characteristics of goldfish and family fish farming conditions, the following methods can be used to establish a filtration system. According to the size of the aquarium, an external filter is configured, which can be overhead or a filter bucket. The flow of water can be found in the description of the pump. Generally speaking, it is appropriate to circulate about 7 times per hour. For example, the volume of an aquarium with a length of 80, a width of 40 and a height of 40 is 128 liters, and the flow rate of the filter pump is 900 liters/hour. For larger aquariums, in order to prevent the water from flowing too fast, it is suggested to install a built-in filter at the entrance and an elbow at the exit to reduce the impact of the water on goldfish. Biochemical sponge and activated carbon are put in the filter box (barrel) and replaced according to the degree of water pollution. But too frequent replacement is not suitable for the establishment of beneficial biological flora. Generally 1 month can be replaced once.
Biodecomposition: In the natural environment, a large number of beneficial bacteria are attached to the places where rivers flow, and they can decompose metabolites and foreign pollutants produced by aquatic organisms. Keep water clean and harmless. Establishing beneficial flora in the aquarium can keep the water quality for a long time without changing water frequently. Adding nitrifying bacteria to the aquarium is a shortcut to establish a biological decomposition system. Nitrifying bacteria sold in the market are mainly divided into two categories, active nitrifying bacteria and artificial nitrifying bacteria. Active nitrifying bacteria take living flora as the main substance. Artificial nitrifying bacteria are substances that promote the growth of nitrifying bacteria in water. Active nitrifying bacteria take effect for a short time, and generally the effect is most obvious when the water temperature is 25-30 degrees within 2-5 days. But the storage time is short, usually less than 12 months. Artificial nitrifying bacteria have a long storage time, generally about 2 years, because they do not contain active strains. But it takes a long time to take effect. Before the establishment of biological system, water quality clarifiers can be used in combination.
3 fish density: no matter how big the fish tank is, the number of goldfish raised is limited. Goldfish are lively and active, and can eat and pull. The water quality of small tropical fish is difficult to maintain. Reasonable breeding density is very important for beginners. Usually 1 year-old goldfish will take up 10 liter of water. That is, an aquarium with a length of 80, a width of 40 and a height of 40 has a volume of 128 liters and can support 1 fish 12. No matter how high the density is, it is difficult to maintain water quality for a long time. In addition, different goldfish species have different requirements for breeding density, and rare species such as pearls, butterfly tails and blisters have smaller breeding density.
4 feed selection: goldfish feed also has a great relationship with maintaining water quality. Goldfish are omnivores. Food covers a wide range. Mainly includes: Daphnia, nematodes, hemoglobin, pellet feed, powder feed, sheet feed, etc. Live Daphnia is the best choice. Not only in food intake, Daphnia can also suck organic suspended solids in water. Moreover, the metabolites produced by goldfish are not easily dispersed. Nematodes, red blood worms and powdered feed may be attached to sand beds or suspended in water, which is not conducive to the cleanliness of water quality. High-quality synthetic feed will contain yeast, which can quickly decompose the metabolites of goldfish and help maintain water quality. Inferior synthetic feed not only has no nutrition, but also contains artificial pigments, which will discolor water. In addition, it is best not to use edible fish feed, such as crucian carp feed for goldfish, which will also pollute the water quality. When feeding, the filter system should be closed to avoid being sucked into the filter box, which will not only cause waste, but also mold and produce toxic substances in the filter box.
5. Fish culture environment: lighting, scenery, etc. It is also related to maintaining the water quality of the aquarium. Excessive light will cause a lot of algae in the water. Proper curtain covering and regular cleaning will be effective. Proper placement of sand bed at the bottom of aquarium will also be beneficial to water cleaning. It can not only adsorb impurities, but also provide a hotbed for nitrobacteria. Generally, the thickness is about 4 cm, and the particles are about 4 mm. The sand bed is too thin to be adsorbed. Too thick sand bed will make the bottom sand bed lack oxygen and cause biological corruption. If the particles are too large, the feed will sink into the gap, which is not conducive to goldfish eating; Too small is not conducive to the oxygen transfer between water flow and particles, and is also not conducive to the growth of nitrifying bacteria.
1 Select an opportunity. Goldfish is different from tropical fish. It is usually cultivated in an outdoor fish farm. After thousands of years of reproduction, it has established its own biological clock. According to different regions, they lay eggs from February to June every spring. Generally, September-165438+ 10 is the best time for goldfish to be listed in that year. Goldfish in this period have been 3-6 months old, some species characteristics have been highlighted, fading has been completed, and they have preliminary ornamental characteristics. From July to August, you can see 2-4-year-old fish and goldfish in the following year in the market, and there are also many fine products. However, due to the high temperature, it is not conducive to the long-distance transportation of goldfish, so the supply is less.
2 choose varieties. According to different personal preferences, you can choose from dozens of existing varieties at will. But it is best to understand the differences of each variety before choosing, which is conducive to raising goldfish. For example, rubber balls, because of their large variation, short intestines and clumsy swimming, have much stricter requirements on the environment and need to be raised in clear water and shallow water, with excellent feed requirements and convenient entrance. Bubble goldfish is not suitable for mixed culture with other goldfish, and it is kept in a bare fish tank without any decorations, so as not to cause bubble damage. For beginners to raise goldfish, we can start with goldfish that is easy to raise and cheap. Such as Jin Wen (Liu Jin), Tianzhu and so on.
3 Choose a good product. Although China goldfish has been bred for thousands of years, it is still too short for a species. Therefore, many goldfish varieties are not very stable, and the output of individual new varieties is several ten thousandths. A goldfish has been kept at home for months or even years. Choose a good goldfish, you can get more beautiful enjoyment. The general principle is to choose goldfish with obvious variety characteristics, free swimming, well-proportioned figure and no disability.
The following table shows the characteristics of all kinds of goldfish:
Characteristics and shortcomings of classified varieties
The eyes of dzi beads are checkerboard, symmetrical and colorful. Elegant varieties with four-leaf tails are not expensive.
Butterfly's tail is plump, short and wide, just like peacock's tail hangs down easily.
The lion's head tumor is plump and not loose, which can partially wrap the eyes and swim freely, and the tail-shaped long head tumor is easy to fester.
The head tumor of the hat is plump and firm, and does not extend to the gills and fish. Tall, swimming freely, head tumor is easy to fester.
Pearl scales are prominent, scale-free, swimming freely, like a ball, with a sharp mouth and fine scales that are easy to fall off on the tail handle.
Jin Wen has a small head, a bulging back, a fat body and an elegant tail. Bright colors, no obvious defects.
Egg blisters are huge, symmetrical and transparent. Fish are short, and the blisters on their tails are easy to break.
Looking up at the sky, eyes up, fat body, smooth back, not suitable for aquarium viewing.
Tiger head tumor is rich, plump, short tail, easy to swim freely and grow into a fish.
Lan Shoutou's tumor is plump and compact, with a plump figure, an arc-shaped back and a 90-degree angle between the caudal fin and the spine, which is convenient for fish to plant their heads.
Not only that, good goldfish's fins are still intact, their egg backs are smooth, they are eager to feed and swim freely. Choosing a good product is like choosing jade in a stone, which is also the fun of choosing fish.
4. Choose the age of the fish. The life span of domestic goldfish is mostly 4-6 years, and 2-3 years is the best ornamental fish age. The goldfish species at this stage have obvious characteristics, strong body and swimming freely. It belongs to the old goldfish after 4-6 years. Its body color recedes, it is lazy to swim, its appetite weakens, and it is easy to get sick. The goldfish within 6 months, the body has just begun to develop, the variety characteristics are not obvious, and the color is not finalized. The rate of defective products is very high, and it is difficult to raise because of the family breeding conditions. Therefore, it is most suitable to choose goldfish aged 6- 18 months. At this stage, the goldfish has a strong appetite, swims freely, the species characteristics appear initially, and the price is reasonable. It can be kept at home for about 2 years.
5 Choose a color. Goldfish are rich in colors, including red, black, blue, purple, bronze, white and five flowers. Two or more colors can be matched to produce more combinations and interesting patterns. Such as: tricolor, magpie flower, jade printing head, crane top red and so on. Family members can choose according to their personal preferences and feeding environment. Goldfish are all gray in the juvenile stage, which is also a biological protective color. It usually changes color within 6 months. It is easy to produce some excessive colors and patterns before the age of 2. White and red are the most stable colors. Other colors will change according to the age of the fish and the feeding environment, especially the older goldfish.
Goldfish-facilities
Sharp tools can do a good job. Having a set of good facilities for keeping goldfish can not only reduce the difficulty of keeping goldfish, but also enhance the ornamental value of goldfish. At present, in the ornamental fish market, you can see fish farming facilities produced all over the country and even around the world, which is very convenient to buy. Need a set of facilities according to the habits and characteristics of goldfish.
The facilities for keeping goldfish mainly include: container, filtering system, oxygen increasing system and water changing device.
Container: Traditionally, goldfish are kept in clay pots and wooden pots (commonly known as "Muhai"). Modern aquaculture mostly uses aquariums. Goldfish are bigger and need more swimming space. Therefore, medium-sized or above aquariums should be used, and the smallest aquarium should be above 60 cm. Goldfish have been artificially raised for thousands of years and are suitable for shallow water growth, so the water depth of the aquarium should not be higher than 40 cm. Small ornaments with smooth surface can be properly placed in the aquarium, but be careful not to leave dead corners, otherwise the clumsy goldfish will get stuck in it and cause harm. Aquarium can increase the top lighting to make up for the lack of light, and it is also convenient to watch goldfish. For families with a large number of fish, a temporary breeding pond should be prepared to isolate sick fish and change water to clean the circulation in the pond.
Filtration system: goldfish has large activity and metabolism. Therefore, external filtration systems are often used in filtration systems. Comprises a top filter box and a filter barrel. Biochemical sponge and activated carbon are placed in the filter box (barrel). The volume of the filter box (barrel) should be large, so that enough filter material can be put in. It should be noted that choosing a well-known pump head is not only low noise, but also long service life. Pump head should be disassembled and cleaned regularly to improve filtration efficiency. The establishment of filtration system can refer to the content of "domestic goldfish-feeding water"
Aerobic system: Goldfish consume a lot of oxygen. Generally, a 60 cm fish tank keeps two goldfish 10 cm. If there is no aerobic system, they will be deprived of oxygen for one night. The commonly used oxygen increasing equipment is an air pump. The air sent by the air pump is dissolved in water through the gas stone. The power of the air pump should not be too large, otherwise it will affect the habit of goldfish living in still water. The gas transmission conduit of the air pump should be equipped with a check valve to prevent water from overflowing from the conduit in case of power failure. For the delicate goldfish breeding, it is suggested to use the air pump as kinetic energy to drive the biochemical sponge (commonly known as "water demon") for aerobic filtration.
Goldfish feed
Goldfish is an omnivorous fish with a wide range of food. This has brought great convenience to goldfish breeding. However, if you want to get a good feeding effect, you must carefully understand the habits of goldfish and the characteristics of various feeds, so that your feeding can be colorful and thrive. Good goldfish feed ingredients should include: protein, fiber, fat, vitamins and trace elements.
Goldfish feed is mainly divided into two categories: aquatic feed and synthetic feed.
Aquatic animal feed includes live or dry aquatic animals and plants that goldfish can eat. Including: Daphnia (commonly known as "red flea"), cyclops (commonly known as "green flea"), blood worm (commonly known as "red worm"), water earthworm (commonly known as "nematode"), duckweed and so on.
In all aquatic animal feeds, practice has proved that Daphnia is the most comprehensive nutrition and the most suitable feed for goldfish. Feeding with Daphnia, goldfish not only love to eat, but also digest well, and the metabolites produced are not easy to be turbid. Moreover, the living Daphnia can also swallow tiny pollutants suspended in the water, thus purifying the water quality (commonly known as "water intake"). However, Daphnia generally depends on the output of nature and is influenced by seasons and weather. Therefore, it can only be purchased in April-165438+ 10 every year, which can't meet the needs of domestic goldfish growth in one year. In addition, Daphnia is not easy to survive and will deteriorate in one day, so it is not easy for busy modern people to feed goldfish entirely by Daphnia. Freezing or drying in the sun can prolong the storage time, but its nutrients will also be lost a lot.
Other aquatic animals are not as comprehensive as Daphnia, and often carry germs, which causes goldfish to get sick. Therefore, disinfection and alternate feeding should be adopted to avoid the above shortcomings.
In recent ten years, synthetic feed has gradually appeared in the market, and the proportion of ingredients tends to be reasonable. It is not only sanitary and convenient to feed goldfish with synthetic feed instead of traditional aquatic feed, but also good results can be achieved as long as the feeding methods are mastered.
According to different forms, synthetic feed can be divided into four types: granular feed, powdery feed, flaky feed and flaky feed.
Granular feed: it is the most common goldfish feed. Generally, floating type is the majority. After the feed is put into use, the granular feed floats on the water surface, and the goldfish needs to swim to the water surface to open its mouth and swallow it. It is especially suitable for feeding goldfish looking up at the sky, which can keep goldfish looking up at food, thus maintaining the variety characteristics. Because the pellet feed is not heavy, it is not easy to leak into the cracks in the bottom sand of the aquarium, and corruption occurs. However, due to the influence of size and variety, goldfish that can only feed underwater will starve to death because they can't find food.
Powdered feed: fine particles can be used to feed young fish, which is common in feed varieties of edible fish. After the feed is put into use, the powdery feed slowly sinks, and the goldfish can eat strongly during the sinking process. But if there is bottom sand, it may fall into the gap, making it difficult for goldfish to eat. Generally, the powdery feed of ornamental fish will make the powdery particles swell. So that it can be suspended in water for a long time. The disadvantage of powdery feed is that it is easy to get muddy water.
Sheet-fed: Also known as sheet-fed, it is an ideal paper feeding form. After feeding, some flakes float on the water, some are suspended in the water, and some sink to the bottom. However, due to the large surface area, it is not easy to leak into the cracks of bottom sand. Goldfish has good palatability, and even varieties with poor foraging ability, such as pearls, blisters, heads of tigers and lions whose eyes are covered with head sarcoma, can be easily eaten. But the price is higher.
Patch feed: You can paste the patch feed on the aquarium glass, and the goldfish will take the initiative to eat it. You can clearly watch the feeding process of goldfish. Suitable for feeding goldfish species with lively swimming and strong body. However, for relatively delicate varieties such as blisters and pearls, in order to prevent blisters and pearl scales from being damaged in the competition, they should be avoided as much as possible. In addition, patch feed is generally used as a supplement to other feeds.
No matter what form of synthetic feed, its ingredients must fully meet the needs of goldfish growth. Good goldfish feed ingredients should be guaranteed: protein is not less than 40%, crude fiber is not more than 4%, crude fat is not less than 4%, and natural astaxanthin, spirulina, water-purifying fungi, vitamins and trace elements should be added. And pay attention to the shelf life when buying, and choose the products of regular manufacturers.
Feeding tips: Synthetic feed is suitable for feeding goldfish at home. Sliced feed is an ideal feed form. Feed ingredients are very important.
Create a comfortable environment for goldfish
Aquarium should be placed in a bright and easy-to-see place, which can not only appreciate but also meet the requirements of goldfish for light, but also be coordinated with other indoor furnishings. It is usually recommended to place the aquarium in a ventilated, sunny place near the window. Rectangular aquariums in China are relatively small in size, so it is absolutely not necessary to raise more goldfish, nor should there be more. For example, in a container 40 cm long, 25 cm wide and 30 cm high, you can raise 6-8 small goldfish 5-7 cm long. For example, a circular glass jar with a diameter of 26 cm and a height of 13 cm can hold 4-6 small goldfish with a diameter of 4-6 cm. Adult fish with a body length of more than 8 cm should not be kept in small glass tanks, but in luxurious large glass tanks or ceramic tanks, and equipped with small oxygenators for standby to prevent hypoxia. These stocking densities are only reference figures, but also depend on the level of water temperature, the strength of fish and the quality of water, which cannot be determined mechanically. Generally speaking, there are large fish and few animals. Raise more in winter and less in summer; You can raise more when the water temperature is low, and raise less when the water temperature is high.
Delicious food that goldfish like.
The bait used for family fish farming is basically the same as that used by production units. Live fish and worms are ideal, and the water quality is not easy to deteriorate. Both dried fish worms and synthetic pellet feed can be used, depending on the difficulty of their sources. In the north, some farmers catch fish worms to feed them themselves, but for most goldfish farmers, it is time-consuming and laborious, and it is difficult to do so. There are live fish and worms on the market now, but it is very troublesome to buy them every day, and you can't buy more. Live fish and worms are not easy to preserve, and they are easy to die if the density is too high. Dried fish worms sold in the market should be fed with fresh and loose particles, and do not buy old and moldy dried fish worms for feeding. It is best to use full-price feed with complete nutrients for artificial pellet feed. In order to keep the water fresh, the feeding amount should be strictly timed and quantified. It is advisable to feed 1-2 times a day. If it is twice, it is sooner or later 1 time. Feed should be finished in half an hour at a time. Don't feed too much bait. There are two hazards: first, the fish is full, the metabolic level is improved, and the oxygen consumption is increased, which is easy to cause hypoxia and suffocation. Second, the bait is left, which is easy to rot and ferment, making the water quality worse and causing hypoxia. Many people don't know enough about this problem, and they are afraid that goldfish will not have enough to eat, and they will often be overfeeded. As a result, the water quality will deteriorate and they will die of lack of oxygen, which must be taken as a warning. In fact, goldfish are hungry, and there will be no problem if they are not fed for a week or two.
Hygiene of cleaning goldfish room
Raising goldfish in aquariums, especially paying attention to cleaning fish with water. It is very important to keep the water quality of the aquarium clear. Latex tube should be used frequently to remove accumulated slag, and the feces and residual bait at the bottom of the aquarium should be cleaned up together with turbid water. The method is to fill the faucet with latex tube first, and squeeze one end with each hand to prevent the water in the pipe from losing. Then put one end of the elephant skin tube in the aquarium, and the other end outside the aquarium at a lower position.