Optimal conditions for keeping and breeding the colourful exotics Prawns in all colours – almost translucent, with stripes or bright red. Startling blue crustaceans and strange shrimps. Shellfish attract audiences and are top sellers at pet shops and aquaristics fairs. More and more species are imported, kept and bred. But how do you keep those exotic creatures healthy and colourful? This guide book presents the most common species and explains caring for those lively newcomers. Checklists on topics like feed and reproductive behaviour allow for a quick overview.