Spans the gulf separating the more specialized disciplines of science-including seawater chemistry, engineering, and physiology-and aquariology. Deals with the maintenance of aquatic animals and plants in a closed-system, i.e., a system in which the water is filtered and otherwise treated, and then reused. Among the topics discussed in detail: temperature control; aeration; buffering; bacteriological filtration; the workings of ultraviolet sterilizers...