Book excerpt: It is easy to get mesmerized with freshwater aquariums. Creating an underwater ecosystem is not only a rewarding experience but can also bring much peace and relaxation to your life. They seem easy to care for at the start, but there is more than meets the eye when keeping your freshwater aquarium and pets healthy. This book will guide you through every process of starting an aquarium, maintaining healthy fish and plants, and tips on how to battle common problems. Perfect for beginner hobbyists and longtime aquarium enthusiasts, An Introduction to Freshwater Aquariums makes it easier than ever to set up a beautiful aquarium that family and friends alike can enjoy, not to mention, most importantly, yourself. Included in this book are full-color photographs that will supply readers with: - Step-by-step instructions on setting up your aquarium - Understanding the chemistry and biology involved in keeping a healthy aquarium - Anatomy and diseases - Including 70+ of the most popular species of fish, invertebrates and plants, and much more.