Feed management is one of the most important factors determining the success of aquaculture, particularly in the culture of striped catfish (Pangasianodon hypophthalmus). Excessive feeding (overfeeding) is still commonly practiced because farmers assume that providing more feed will accelerate fish growth. In fact, uneaten feed accumulates as organic waste, reducing water quality and increasing fish mortality. This article aims to explain the effects of overfeeding on water quality, fish growth, and survival based on literature studies. The discussion covers fish nutritional requirements, water quality deterioration due to feed waste, physiological responses of fish to poor water quality, and the utilization of fish waste as an alternative feed ingredient. The study indicates that excessive feeding increases ammonia concentration, decreases dissolved oxygen, reduces feed efficiency, suppresses fish growth, and ultimately increases mortality. Therefore, proper feeding management combined with good water quality management is essential to achieve sustainable striped catfish aquaculture..
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