The shark will not recognize its owner for a long time. Sharks are cold-blooded animals with very ferocious temperaments. Although some sharks will not actively attack humans, they can still pose a certain threat to humans. It cannot be tamed by humans, so they will not obey humans. Even if they are very good to it and feed it every day, it will not recognize its owner.

Precautions for raising sharks

1. Change the water frequently. Sharks eat a lot of food and excrete a lot of feces, so they should change the water frequently. Sharks are large and have strong adaptability to changes in water quality. They can excrete large amounts of feces to ensure fresh water quality.

2. Suck the bottom frequently. The feces just excreted by the shark is in the shape of clumps. At this time, sucking the bottom in time can ensure the clarity of the water quality. Once the feces is excreted and not sucked in for a long time, the shark will swim and break up the feces, and the water in the aquarium will become turbid and the transparency will be reduced. This will not only affect the viewing effect, but also have a lot of suspended matter in the water, which can easily cause sharks to suffer from gill disease.

3. The bait should be fresh. If the bait is not fresh, sharks are prone to enteritis, so the bait must be fresh.