1. Floating head: The obvious performance of Siraitia grosvenorii after anoxia is floating head, which generally does not move in the upper layer. Only when there is lack of oxygen will they swim in the upper layer. When Siraitia grosvenorii floats its head, it will grow its mouth to breathe and try to get oxygen in the air.

2. Reduced activity: When Siraitia grosvenorii is deprived of oxygen, its activity will also decrease, and it seems to be inactive. There are some Luohan fish, which will still float on the water all the time and look like they are powerless.

3. Sideswim: If the lack of oxygen is serious, they will swim sideways or turn upside down. If they are not given oxygen in time now, they are likely to die.

Siraitia grosvenorii is large in size, fast in metabolism and serious in water pollution. When raising artificially, it is necessary to install an oxygen pump to ensure sufficient dissolved oxygen in water.

If the water body in which Siraitia grosvenorii lives is relatively large and the circulating filtration system is always open, the breeder can only give them oxygen during the day. Because the water body is large, the water quality is not easy to be polluted, and the circulating filtration system can also increase a small amount of oxygen, so only oxygenation during the day can meet their demand for oxygen.

If the water body in which Siraitia grosvenorii lives is small, even if the circulating filtration system is normally opened, oxygen should be pumped for 24 hours. Because the water body is small, there is less oxygen that can be stored in the water. If oxygen is not replenished in time, they will suffer from hypoxia.