A comprehensive field guide for aquarists, divers and naturalists, with detailed full color photographs of hundreds of species, encompassing many of the invertebrates one is likely to encounter on and near reefs around the world. This book defines the invertebrate groups and gives brief information about their structure and natural history. Hundreds of species of invertebrates are described.

In addition the author gives information about similar-looking species, range, habitat, food requirements, special considerations, toxicity, hardiness and compatibility issues, and discusses their suitability for reef aquariums and captivity in general.

This book is the essential guide for all aquarists who want to make the right choices when stocking an aquarium with invertebrates or purchasing invertebrates for a reef aquarium.