[Ebook] Encyclopedia of Aquarium & Pond Fish – Introduction to FISHKEEPING – Diversity
Fish have colonized almost every aquatic environment on the planet. Blackfin Icefish inhabit the freezing depths of the Antarctic Ocean, while Desert Pupfish thrive at over 104°F (40°C) in pools in the Nevada Desert. The huge diversity of fish habitats worldwide has driven the evolution of the countless shapes, sizes, and colors that make fish so fascinating to keep.