1, reason: One-time change water quantity is overmuch, can bring about water quality change too big. Silver arowana can't adapt to it for a while, so they will swim head down.
2. Treatment method: Use an oxygen pump to pump oxygen into the water for 1-2 hours to increase the content of dissolved oxygen in the water and help them recover. Do not feed them during this time, let them rest for a period of time, slowly recover. The next time you change the water, you should be careful not to change too much water, and a quarter of it is enough to change each time. If you want to change more, you can pour the old and new water back and forth.
1. Reason: When the water quality is too poor, the bacteria in the water will multiply in large numbers. When they multiply to a certain number, the silver arowana will be easily infected and sick. Most of the sick fish can't recover by themselves, so they need medication at this time.
2. Treatment method: First, replace part of the water in the fish tank to improve the water quality. Sick fish are then quarantined to avoid infecting healthy fish. Finally, the body surface of the diseased fish was smeared with potassium permanganate to treat them.
1. Reason: Although the silver arowana can adapt to a wide range of temperatures, the rapid change of temperature will cause harm to them. When the temperature changes too much, they can not adapt to it for a while, and the imbalance will occur.
2. Treatment: Slowly raise the water temperature, and their bodies will gradually recover their activity as the temperature rises. After a while, they can be seen to return to balance.
