Bio-Activity and the Theory of Wild Re-Creation is an in-depth guide to creating naturalistic, self-sustaining enclosures for reptiles, amphibians and invertebrates. Written by Arcadia founder and reptile expert John Courteney-Smith, this book explores how modern keepers can recreate the biological systems found in the wild to support healthier, more ethical captive care. By mimicking natural environments — including soil, plants, water cycles, microfauna, and lighting — keepers can provide their animals with everything they need to thrive physically and behaviourally. This approach moves beyond simple decoration and focuses on building living systems that actively support animal welfare. The book explains how bio-active systems improve hydration, digestion, immune function, and natural behaviour while reducing stress and long-term health problems. It also shows how correct lighting, UVB, and plant growth all work together to create stable, balanced habitats. Whether you keep reptiles, amphibians, or invertebrates, this guide provides the knowledge needed to design enclosures that support life, growth, and reproduction in a way that reflects how these animals live in the wild. What This Book Covers Bio-active enclosure design Natural soils, substrates and drainage layers Live plants and microfauna Water cycles and hydration Hygiene and waste breakdown UVB and full-spectrum lighting Light for plant growth Nutrition within living systems Product Details Author: John Courteney-Smith Publisher: Arcadia Reptile Format: Hardback Pages: 374 Book Code: RBK03 ISBN: 978-0-9576570-3-8 Who This Book Is For This book is ideal for reptile, amphibian, and invertebrate keepers who want to move beyond basic enclosure setups and create living, biologically active habitats. It is suitable for hobbyists, breeders, zoological collections, and anyone interested in ethical, modern exotic animal care. Frequently Asked Questions What does “bio-active” mean? Bio-active systems use living plants, beneficial micro-organisms, and natural materials to create a self-maintaining ecosystem inside the enclosure. Is this book suitable for beginners? Yes. The concepts are explained clearly, making it suitable for keepers at all experience levels. Does it cover lighting and UVB? Yes. The book explains how UVB and full-spectrum lighting support both animals and plant growth in bio-active enclosures. Is this only for reptiles? No. The book also applies to amphibians and invertebrates kept in naturalistic enclosures.