Aquarium keeping of snails, mussels, sea stars, brittle stars, sea urchins, sea cucumbers, tunicates, and more! The Modern Coral Reef Aquarium Vol. 4 covers several important invertebrate groups of great interest and importance to the modern reef aquarium keeper: Molluscs, such as snails, slugs and bivalves, commonly found in the trade are discussed in detail. Like in previous volumes of this book series, also more obscure and rare members of the phylum are covered to the extent, which can be of value to the marine aquarist. Echinoderms - or spiny skinned animals - are shown in spectacular photos, and the biology and aquarium care of the many interesting brittle stars, starfishes, sea cucumbers, and sea urchins are described in detail. The book also discusses the interesting group of sea squirts, or tunicates. These organisms, which are very insufficiently covered in most aquarium books, are dealt with in detailed accuracy and illustrated with magnificent colour photos. As an introduction to the book, Dr. Bruce Carlson (former Director of the Waikiki Aquarium, Hawaii) has written a fascinating chapter on "The Future of Reef Aquariums".