1. how to check the reasons

for the death of fish in the fish tank? First of all, check the various equipment of the fish tank to see if it works properly, especially the oxygen pump and heating rod, whether it can supply oxygen and heat normally. Lack of oxygen and cooling are the main causes of fish death. In addition, we need to measure the water quality. Generally, we need special measuring equipment to see the changes of pH and hardness. If the changes are large, they will also lead to the death of fish. Poor

water quality is one of the main causes of fish death, which is mainly due to not paying attention to changing water at ordinary times, or feeding too much, thus accelerating the deterioration of the water body. Usually once a week, do not change more than one third of the water each time, and control the amount of feeding at ordinary times.

2. Equipment failure: If the equipment in the fish tank fails, the fish will also die. This mainly includes two aspects, one is that the equipment can not work properly due to malfunction, such as the oxygen pump and heating rod mentioned above, resulting in dissolved oxygen and temperature drop, thus killing fish, the other is that the leakage of electricity causes fish to be electrocuted, so the old electrical appliances need to be replaced.

3, disease factors: If the fish is sick, it is easy to die. Under normal circumstances, fish are not easy to get sick, but if the food is not clean, such as feeding with unsterilized live bait, it may bring in some harmful bacteria or parasites, leading to the death of fish.