What range of temperature can fish tolerate?

Fish can tolerate a wide range of temperatures, typically between 0°C (32°F) and 30°C (86°F), depending on the species. Some cold-water fish, like trout, thrive in cooler waters, while tropical fish prefer warmer environments. Extreme temperatures outside their preferred range can lead to stress, reduced metabolism, and even death. It's essential for fish to inhabit waters that suit their specific temperature needs for optimal health and survival.