Arowana requires water with a slightly acidic to neutral pH, ideally between 6.5 and 7.5, and soft water with a general hardness (GH) of 3–12 dH. The ideal water temperature is 24–28°C, and it’s crucial that nitrite and chlorine levels are kept at zero to ensure the fish’s health.

When introducing new Arowana into your tank, make sure the air pump runs for at least 24 hours to remove any chlorine from tap water. If you have a biological filter, allow the water to stabilize at a pH of 6–7 and a temperature of 25°C. Adding a small amount of salt—about 1–2 teaspoons per 5 gallons (20 liters) of water—can help prevent fungal infections and improve the fish's overall vitality. If possible, bring in 1/3 of the water from the original tank where the Arowana was kept. This helps the fish adjust more easily to its new environment and reduces stress during the transition.

It’s best to start raising Arowana from a young age, as they grow quickly and need consistent care. For daily maintenance, change 20–30% of the water weekly and keep ammonia levels below 0.1 ppm. Avoid sudden changes in temperature or pH, as these can be fatal to Arowana. Regularly test the water for pH and other toxins to maintain stable conditions. When changing water, avoid overdoing it—too much can cause fin loss or eye cloudiness, while too little can lead to poor water quality. If you notice fin or scale loss, stop changing water temporarily; the fish should recover naturally.

The aquarium should be large enough to accommodate Arowana’s size. A minimum tank size of 1.5 meters long, 0.5 meters wide, and 0.7 meters high is recommended. The tank must also be covered, as Arowana are known to jump out if they feel stressed or lack oxygen. Lighting is important too—Red Arowana needs about 4 hours of daylight, while other varieties benefit from 8 hours of light. Some hobbyists use red light to enhance coloration in Red Arowana, but natural daylight is the most beneficial. Prolonged exposure to artificial lights may dull their colors over time.

Filtration is essential for Arowana tanks due to their size and waste production. Suitable filtration systems include top filters, external filters, sand filters, and overflow filters. It’s also important to install a lift pump or surge pump to create water movement, increase oxygen levels, and encourage natural swimming behavior. This helps maintain the fish’s body shape and prevents them from flipping over. During recovery periods, using a water pump can support fin development and reduce stress.

Feeding Arowana requires careful attention. They are carnivorous and prefer live or frozen foods such as frogs, loaches, crickets, goldfish, grasshoppers, shrimp, and worms. For juvenile Arowana under 12 cm, feed them soft, easy-to-digest options like white worms, peeled shrimp balls, and bloodworms. Feed them four times a day in small portions. As they grow past 15 cm, they can handle larger prey like breadworms, shrimp, and small fish. Arowana over 20 cm can eat bigger fish, meat, and insects. However, avoid feeding them fatty or contaminated food, especially liver, which can lead to serious health issues. Goldfish, in particular, are not recommended as they often carry diseases that can harm Arowana.

Artificial food is an option, but it’s best to choose low-fat beef or specialized Arowana pellets. While some fishkeepers may find Arowana reluctant to eat commercial food, gradual introduction can help them adapt. Lastly, stocking density matters: a 5-gallon tank can hold up to 30 Arowana if they’re around 20 cm in length, but overcrowding should be avoided to ensure good water quality and healthy growth.

Viral Transportation Medium Tube

Uses: used for the detection and sampling of influenza, hand, mouth, foot and other epidemic diseases
Inspection principle:
The combination of multiple antibiotics has broad-spectrum antibacterial and antifungal effects;
As a protein stabilizer, bovine serum albumin can increase the survival time and infection stability of the virus;
Buffers such as Hank's build a neutral environment, which helps to increase the survival time and infection stability of the virus;
Phenol red is an acid-base indicator, the discoloration area is 6.6 (yellow)~8.0 (red), and it is red at 7.2~7.4.
Steps:
1. According to the sampling requirements, use a sampling swab to collect samples.
2. Place the swab after collecting the sample into a sterile sampling tube.
3. Break the sampling swab rod that is higher than the sterile sampling tube.
4. Tighten the cap of the sterile sampling tube.
5. Label the sterile sampling tube with information as required.

For sample collection, transportation and storage.
Product advantages:
1. The virus discretion of the flocking swab is high to ensure the accuracy of the test results.
2. The samples are well sealed to ensure product transportation and safe storage.
3. Product instruction manual, product certificate
Product Details:
1. The product set includes a one-time Virus Sampling Tube (including preservation solution), a self-sealing bag, a sampling swab, and instructions.
2. Product specification: 100 sets/box, 8 boxes/box 3. Product weight: 0. 65kg/box, 13. 2kg/box
4. Packing size: 25. 5*23. 5*14. 5 boxes, 53*49*32/carton
Scope of application:
Work resumption testing, the best choice for large-scale population screening
Features:
1. Transport at room temperature, stably preserve viral RNA
2. Pre-packaged guanidine salt lysate can inactivate the new coronavirus, ensuring the safety of transportation and testing personnel 3. The large-capacity preservation solution can fully soak the swab head,
The sample size can be divided into three parts for testing and reserve samples respectively to meet the testing needs.
Scope of application:
Suspected cases, disease control testing, preferred by P3 laboratory

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Jilin Sinoscience Technology Co. LTD , https://www.jlgkscience.com