When fish habitually linger near the surface, gasp for air, or exhibit unnatural buoyancy, it signals a potential problem. While not always an emergency, understanding the underlying causes is crucial for their well-being. Here are three common reasons behind this behavior that require immediate attention:
- Oxygen Deprivation: Low oxygen levels can force fish to the surface to breathe. Check the filter and aerator, ensuring they are functioning correctly.
- Water Quality Issues: Ammonia or nitrite buildup can irritate fish gills, making it harder to extract oxygen from the water. Test your water parameters and perform a partial water change if necessary.
- Disease or Parasites: Certain health conditions, such as swim bladder disorder or gill infections, can cause fish to lose buoyancy or experience respiratory distress, leading them to the surface for relief.