1. Reduced activity: When guppy dies, the symptoms are obvious. First of all, their activity will decrease, and some will stop their activities. Not only that, but when they are near death, there will be obvious differences in swimming and peacetime. For example, their swimming will be unbalanced, and they may turn over their bellies. Secondly, their food intake will also decrease, and the speed of metabolism will also decrease.

2, Dark color: When guppies are dying, their body color will also become dull. Near death, their body color may turn white or light. When breeders find that their body color is dim, they should be treated immediately to avoid their death.

If there are no other external factors, guppy may die because of unwell living environment. If breeders want to save them, they must adjust their living environment. You can use a heating rod to raise the water temperature to about 28 ℃. Install another filter to slow down the deterioration of water quality. It is best to install an oxygen pump and pump a lot of oxygen. As long as the environment is kept stable, basically they will not deteriorate again. Moreover, as long as the water temperature, water quality and oxygen are kept stable, the guppy's life can be saved well.