This guide covers all aspects pertaining to the use of zebrafish including their basic biology, humane care and management, husbandry, life support systems, regulatory compliance, technical procedures, veterinary care, and water quality management. The zebrafish is now a mainstream model animal employed by scientists to study everything from stem cells to the basis of behavioral changes induced by drug addiction. However, there are few accepted and established standards for husbandry, management, and care for the fish in laboratory settings and even fewer comprehensive and constantly reliable resources. To this end, the goal of this handbook is to provide managers, veterinarians, investigators, technicians, and regulatory personnel with a concise yet thorough reference on zebrafish biology, care, husbandry, and management. The new edition includes more figures, tables and bullet points, a wealth of new full-color images, major updates on health and welfare (including colony health surveillance and viruses), and a complete overhaul of the compliance section to address more international concerns.