First, the quality of rearing Asian arowana
Arowana is suitable for weakly acidic or medium-sized soft water. Take care to remove chlorine or fluorine from the water. When using hard water such as well water, first boil the water to remove impurities, or use ion exchange resin filtration equipment to remove impurities and turn it into soft water. Can be used. The water temperature for rearing water is 24 to 28°C, and the optimum water temperature for Yinlong and Black Dragon is 27 to 28°C. When purchasing new juveniles, a small amount of antibiotics must be added to the water that is raised. Chloramphenicol and tetracycline are the best. Use 13 mg of water in 1 liter of water to make the water in the aquarium slightly yellowish or slightly cyan.
Raising Arowana cannot replace all the water, otherwise it will cause damage to the fish. Initially, 1/8 to 1/6 of the fresh water can be injected. After the fish is used, fresh water can be changed daily or every other day. If the aquarium is large, there are not many fish, and there will be more water changes. It is safer to start with juvenile fish. Arowana can't change too much water, not too little. Too little water change will make the fins of Arowana unclear and the eyeballs dirty, and even cause flipping of lids. Change the water volume of the aquarium to 1/4 to 1/5 of the water for each change, and do not exceed 1/3. Sometimes it is seen that the fins and scales of the arowana come off. This is because there is too much water change. As long as the water change is suspended, the fins can be restored and the scales will slowly grow out.
Arowana's ability to adapt to water quality is very strong. The ideal pH is between 6.5 and 7.5. Too low and too high influence the growth and color of the arowana. Hardness 3 ~ 12dH is more ideal.
Second, aquaculture filter systems and equipment
Filtration of juveniles can be done with a simple upper filter or plug-in filter because juveniles have small food intake and excretion. This kind of filtration has a good effect on the young fish, that is, the water type of the filter is the undershoot type, which has a safety effect on the young fish, and the fins will also open.
The filtration of medium and large arowana is more diverse: it can be roughly divided into the following ways: 1 Upper filter; 2 External filter; 3 Upper filter + pumping sand filter; 4 Overflow bottom filter . There must also be a good biological filtration system. The filter media is quite important. The commonly used filter media include filter cotton, filter biochemical cotton, ceramic pellets, and rings.
Lighting equipment: Generally rearing arowanas are all indoors and cannot be directly exposed to sunlight, so providing proper lighting is a must, and light can promote the metabolism of the fish. And there is a color effect. It is better to choose the lighting tube to be closer to the natural spectrum first. For the sake of visual appreciation, the reddish plant lamp can be used.
Lamps can be used as upper fixtures and underwater fixtures. The upper lighting device is more convenient, but the illuminance will reduce the illuminance due to the refraction of the glass and the water surface. The water luminaires have no such drawbacks, and the lamp illuminance can be fully exerted. The disadvantage is that algae are easily produced.
Yangshui Motor (surfing pump): In addition to its ability to form strong water flow, it can also increase the amount of water in the water, in addition to the Arowana have two benefits: 1 increase the amount of Arowana exercise, you can maintain the fish's beautiful body shape; 2 Avoids the turning of dragon fish. If you use a pump to lift the scorpion after surgery, you can make the decidua grow smoothly.
Third, rearing Arowana bait
Artificial bait: easy to get, clean and sanitary, no parasites, is a more convenient bait. At present, Arowana artificial baits have been sold on the market. Arowana is a benign flesh and it would be unaccustomed to change it to an artificial diet. It will take a period of time for bait to eat artificial bait.
Bio-feed: There are many varieties of bio-feed, and there are different ways of feeding bait for different sizes of arowana. Examples are as follows:
(1) A young arowana less than 12 cm old begins to eat raw baits. At this time, it can be fed with white breadworms, creeks (just off the shell), heads, tails, and blood bugs. During the feeding period, special attention should be paid to eating less meals, which is particularly important for the growth of young fish.
(2) Approximately 15 cm of Arowana can be fed with normal breadworms and streamers or about 1.5 cm of small fish. When you feed the stream shrimp, you need to remove scare swords so as not to hurt the stomach. At this point it grows quickly and eats more.
(3) For arowana larger than 20 cm, live baits such as larger small fish, stream shrimp (cut shrimp sword), meat chunks, and loach can be fed. There are also some seasonal live baits, such as frogs, crickets, crickets, spiders, crickets, etc., which are particularly popular live bait for dragon fish. Like to eat oysters, it is important to note that oysters should not be contaminated by insecticides.
Arowana is suitable for weakly acidic or medium-sized soft water. Take care to remove chlorine or fluorine from the water. When using hard water such as well water, first boil the water to remove impurities, or use ion exchange resin filtration equipment to remove impurities and turn it into soft water. Can be used. The water temperature for rearing water is 24 to 28°C, and the optimum water temperature for Yinlong and Black Dragon is 27 to 28°C. When purchasing new juveniles, a small amount of antibiotics must be added to the water that is raised. Chloramphenicol and tetracycline are the best. Use 13 mg of water in 1 liter of water to make the water in the aquarium slightly yellowish or slightly cyan.
Raising Arowana cannot replace all the water, otherwise it will cause damage to the fish. Initially, 1/8 to 1/6 of the fresh water can be injected. After the fish is used, fresh water can be changed daily or every other day. If the aquarium is large, there are not many fish, and there will be more water changes. It is safer to start with juvenile fish. Arowana can't change too much water, not too little. Too little water change will make the fins of Arowana unclear and the eyeballs dirty, and even cause flipping of lids. Change the water volume of the aquarium to 1/4 to 1/5 of the water for each change, and do not exceed 1/3. Sometimes it is seen that the fins and scales of the arowana come off. This is because there is too much water change. As long as the water change is suspended, the fins can be restored and the scales will slowly grow out.
Arowana's ability to adapt to water quality is very strong. The ideal pH is between 6.5 and 7.5. Too low and too high influence the growth and color of the arowana. Hardness 3 ~ 12dH is more ideal.
Second, aquaculture filter systems and equipment
Filtration of juveniles can be done with a simple upper filter or plug-in filter because juveniles have small food intake and excretion. This kind of filtration has a good effect on the young fish, that is, the water type of the filter is the undershoot type, which has a safety effect on the young fish, and the fins will also open.
The filtration of medium and large arowana is more diverse: it can be roughly divided into the following ways: 1 Upper filter; 2 External filter; 3 Upper filter + pumping sand filter; 4 Overflow bottom filter . There must also be a good biological filtration system. The filter media is quite important. The commonly used filter media include filter cotton, filter biochemical cotton, ceramic pellets, and rings.
Lighting equipment: Generally rearing arowanas are all indoors and cannot be directly exposed to sunlight, so providing proper lighting is a must, and light can promote the metabolism of the fish. And there is a color effect. It is better to choose the lighting tube to be closer to the natural spectrum first. For the sake of visual appreciation, the reddish plant lamp can be used.
Lamps can be used as upper fixtures and underwater fixtures. The upper lighting device is more convenient, but the illuminance will reduce the illuminance due to the refraction of the glass and the water surface. The water luminaires have no such drawbacks, and the lamp illuminance can be fully exerted. The disadvantage is that algae are easily produced.
Yangshui Motor (surfing pump): In addition to its ability to form strong water flow, it can also increase the amount of water in the water, in addition to the Arowana have two benefits: 1 increase the amount of Arowana exercise, you can maintain the fish's beautiful body shape; 2 Avoids the turning of dragon fish. If you use a pump to lift the scorpion after surgery, you can make the decidua grow smoothly.
Third, rearing Arowana bait
Artificial bait: easy to get, clean and sanitary, no parasites, is a more convenient bait. At present, Arowana artificial baits have been sold on the market. Arowana is a benign flesh and it would be unaccustomed to change it to an artificial diet. It will take a period of time for bait to eat artificial bait.
Bio-feed: There are many varieties of bio-feed, and there are different ways of feeding bait for different sizes of arowana. Examples are as follows:
(1) A young arowana less than 12 cm old begins to eat raw baits. At this time, it can be fed with white breadworms, creeks (just off the shell), heads, tails, and blood bugs. During the feeding period, special attention should be paid to eating less meals, which is particularly important for the growth of young fish.
(2) Approximately 15 cm of Arowana can be fed with normal breadworms and streamers or about 1.5 cm of small fish. When you feed the stream shrimp, you need to remove scare swords so as not to hurt the stomach. At this point it grows quickly and eats more.
(3) For arowana larger than 20 cm, live baits such as larger small fish, stream shrimp (cut shrimp sword), meat chunks, and loach can be fed. There are also some seasonal live baits, such as frogs, crickets, crickets, spiders, crickets, etc., which are particularly popular live bait for dragon fish. Like to eat oysters, it is important to note that oysters should not be contaminated by insecticides.
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