Fish can live in cooling ponds, but their survival depends on the temperature, oxygen levels, and overall water quality of the pond. Since cooling ponds are used to absorb heat from power plant operations, the water can become quite warm, especially near the discharge points where heated water enters the pond. Some fish species are more tolerant of warm temperatures than others, and in many cases, fish like catfish, tilapia, or certain types of bass may thrive if conditions remain stable.
However, if temperatures rise too high or oxygen levels drop too low, it can create stress or even be fatal for aquatic life. To support fish populations, operators may monitor water quality carefully and manage vegetation, algae, and nutrient levels. In some cooling ponds, fishing is even allowed, showing that with the right balance, the pond can support both industrial use and aquatic life. Still, because these ponds are engineered for cooling rather than ecology, not all of them are suitable for sustaining fish year-round.
