Do crayfish like polluted water or nonpolluted?

Crayfish generally prefer nonpolluted water as it provides a healthier environment with sufficient oxygen and suitable habitats for feeding and breeding. Polluted water can contain harmful chemicals and lower oxygen levels, making it less hospitable for crayfish. While some species may tolerate certain pollutants, overall, crayfish thrive in clean, well-oxygenated aquatic ecosystems.