Jay F. Hemdal's introduction to miniature aquariums (essentially home aquariums that contain 8 gallons, or 30 liters, of water or less) begins with choosing a mini-aquarium from the many options available today and getting started with the right equipment (lighting, filters, heaters, decorations, and so forth). The author offers step-by-step instructions for installing the mini-aquarium and establishing the biological filtration system as well as maintaining the tank. Mini-Aquariums devotes a chapter to water, giving sound advice on water changes, sea water, maintaining the necessary chemical levels, and water quality. Deciding the contents of the mini-aquarium--tropical fish, plants, corals, and invertebrates---is looked at in two chapters devoted to marine mini-aquariums and freshwater mini-aquariums. There is also a special chapter on mini-container ponds and mini-ecosystems. Resources and glossary included.