Lethargy in Fish

Lethargy in fish refers to a significant slowdown in their activity levels, where they may float passively, drift near the surface or bottom, and show reduced response to stimuli. It often indicates underlying health issues such as stress, illness, poor water quality, or inadequate environment. Fish exhibiting lethargy may have clamped fins, stay in one spot for long periods, or show decreased appetite. Promptly identifying and addressing the cause—such as improving water conditions or treating infections—is essential to restore their normal activity and well-being.