The precursors of betta fish's death mainly include the following aspects:
Abnormal Behavior: Betta fish may exhibit abnormal behaviors, such as swimming or jumping frequently on the water surface. This might be because they are looking for a more suitable environment or feeling uncomfortable due to water quality problems.
Changes in Body Color: The body color of betta fish may become dull. This is because their poor health condition prevents them from carrying out pigment metabolism normally.
Loss of Appetite: The appetite of betta fish will significantly decrease, or they may even stop eating altogether. This is usually because they feel uncomfortable due to environmental changes or diseases.
Rapid Breathing: Betta fish may frequently take in air on the water surface and even show signs of suffocation. This is usually caused by deteriorated water quality or unsuitable water temperature.
Changes in Body Posture: The body posture of betta fish may become weak, with slow swimming, or they may even lie on their sides at the bottom of the water. This is a sign of the deterioration of their health condition.
Preventive Measures and Solutions:
Keep the Water Quality Clean: Regularly change the water to ensure its cleanliness and avoid residues from affecting the health of betta fish.
Control the Water Temperature: Keep the water temperature at an appropriate level, avoid sudden changes in temperature, and ensure that betta fish can live in a suitable environment.
Observe Behavioral Changes: Regularly observe the behavioral and postural changes of betta fish, detect abnormalities in time and take measures accordingly.
Isolate in Time: If betta fish are found to have abnormal behaviors or postural changes, they should be isolated in time to avoid spreading diseases to other fish.