What Are the Reasons Fish Stop Eating? A Full Analysis of Common Causes

Water Quality Problems

Water is the environment in which fish live. Water quality can change due to the influence of external natural conditions and human factors. For example, when there are floods, the water color becomes turbid and the water contains much silt, which is unfavorable for the life of fish; too many aquatic plants, or rotting and deteriorating ones, will also affect water quality. Especially under human influence, for example, when people pour large amounts of domestic sewage into rivers, lakes, ponds, dikes and weirs, the water quality will deteriorate; factory wastewater contains chemical substances and toxic substances, and when it flows into natural waters, fish are seriously threatened, not only losing their appetite but even unable to stay alive. Therefore, the quality of the water is the main factor affecting the feeding habits and appetite of fish.

Water Temperature Problems

For temperate-zone fish, the optimal water temperature for life is 15°C to 25°C. Within this temperature range, fish are active and have a strong appetite. If the water temperature is below 10°C or above 35°C, fish will feel uncomfortable, their activity will decrease, their appetite will be very low, and they may even stop eating. The weather in nature changes rapidly: one moment the sky is clear for thousands of miles, the next dark clouds press down, and then there is lightning and thunder with a strong wind; waves appear in the water, muddy sediment is stirred up, changing the living environment of fish and correspondingly bringing about physiological changes. If the hot weather cools down and there is a gentle breeze and fine rain, the dissolved oxygen content in the water increases, and the fish will change from sluggish to active and their appetite will increase; at this time the effect of fishing will naturally be good.