Betta fish require moderate lighting, but direct strong light should be avoided. The specific feeding suggestions are as follows:
The Core Principles of Lighting Requirements
Avoid Direct Sunlight
Betta fish do not like direct exposure to strong sunlight or light. Such an environment will make them feel uncomfortable and may affect the display of their body color.
Prefer Dark or Low-Light Environments
In a relatively dim light condition, the body color of betta fish is more likely to become vivid and bright. At the same time, it can reduce the stress response. However, it should be noted that the light cannot be completely dark, otherwise it may affect their metabolism and lifespan.
Daily Lighting Suggestions
You can use a soft light source (such as an LED light), and control the daily lighting time to be about 8 hours.
Indoor natural lighting can meet the needs, and there is no need for additional strong light equipment.
The Relationship between Lighting and Other Factors
Body Coloration and Health: A moderate low-light environment is helpful for betta fish to have bright body colors, but a completely lightless environment will inhibit their growth and metabolism.
Water Flow and Dissolved Oxygen: Betta fish prefer still water or slow-flowing water environments, and an appropriate dissolved oxygen level (above 5mg/l) is required. Lighting and dissolved oxygen jointly affect their health status.
Consequences of Incorrect Lighting
Too Strong Light: It may cause betta fish to fade, become anxious, or exhibit evasive behavior.
Completely Dark: A long-term lightless environment will disrupt the physiological rhythm and affect their lifespan and vitality.
Conclusion: When feeding betta fish, mainly rely on indoor natural light or soft artificial light sources, avoid direct strong light, and ensure that the light is moderate rather than completely dark to maintain their health and ornamental value.