DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The inventive algeacidal compositions are aqueous mixtures which preferably contain at least one algaecidal agent, discussed in more detail below, and at least one degreaser, preferably a terpene or combination of terpenes. Terpenes are widely distributed in nature and are present in nearly all living plants. It is generally recognized that the term "terpene" not only applies to isoprene oligomers, but also to their saturated or partially saturated isomers as well as to their derivatives, which are referred to as terpenoids, such as, for example, alcohols, aldehydes, esters, and the like. Terpenes have been widely used as flavor and perfume materials as well as effective cleaning agents for both household and industrial use. Common monoterpenes include turpentine, limonene, and pinene. The preferred terpenes in the present invention include limonene (e. g. LIMONENE 135 by SGM GLIDCO Organics, of Jacksonville, Fla. ) and a combination of terpene hydrocarbons such as DIPENTENE EXTRA (by SGM GLIDCO Organics of Jacksonville, Fla. ). Other suitable terpenes include pinene and turpentine. Preferably the inventive algaecide composition comprises from about 0. 0025 v/v % to about 0. 005 v/v %, more preferably about 0. 0025 v/v %, of one or more terpenes. Due to the aqueous nature of the inventive algaecide composition and the presence of the terpene or terpenes, at least one surfactant is required to solubilize the terpene and thereby provide a homogenous solution. Preferred surfactants include, but are not limited to, polyethoxyethanol non-ionic surfactants; however, any surfactant suitable for solubilizing terpenes may be employed. Examples of such surfactants include, but are not limited to, Triton X-100 and Triton X-114 (octylphenoxy polyethoxy-ethanol), Triton X-110, Triton X-45, and most preferably MAZCLEAN (manufactured by PPG). Preferably, the algaecide composition comprises from about 0. 0025 v/v % to about 0. 005 v/v % of surfactant, more preferably about 0
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