Murky pond water? Algae or struggling plants? In this handy pocket guide, you will find everything you need to correctly interpret symptoms, address causes, and create optimal conditions for a healthy pond. Learn about various methods for water analysis as well as the key biological processes involved. Discover how to effectively combat algae using mechanical, biological, and chemical methods, and how to filter your pond water. Additionally, this book includes physically, chemically, and biologically effective substances for your pond pharmacy.