Abstract: There are disclosed non-phytotoxic biocompatible compositions comprising tea tree oil (TTO), as well as their use and methods for their production. Other embodiments are also disclosed.

Abstract: The invention discloses a novel wide spectrum aquaculture pharmaceutical, comprising a therapeutic, disinfective and/or anesthetize effective amount of a preparation comprising TTO in a stable water-in-oil emulsion of alkali or ammonium salts of organic fatty acid; said emulsion is also stable when converted into an oil-in-water emulsion, wherein the preparation is for the treatment of aquatic animals suffering from a disease selected from bacterial, parasitic, viral and mycotic diseases. The invention also discloses a method for treating diseases selected from bacterial, parasitic, viral and mycotic origin, in an aquatic animal suffering therefrom, which method comprises administering a therapeutic active amount of a preparation comprising TTO in a stable water-in-oil emulsion of alkali or ammonium salts of organic fatty acid; said emulsion is also stable when converted into an oil-in-water emulsion to said aquatic animal.

Abstract: The invention discloses a novel wide spectrum aquaculture pharmaceutical, comprising a therapeutic, disinfective and/or anesthetize effective amount of a preparation comprising TTO in a stable water-in-oil emulsion of alkali or ammonium salts of organic fatty acid; said emulsion is also stable when converted into an oil-in-water emulsion, wherein the preparation is for the treatment of aquatic animals suffering from a disease selected from bacterial, parasitic, viral and mycotic diseases. The invention also discloses a method for treating diseases selected from bacterial, parasitic, viral and mycotic origin, in an aquatic animal suffering therefrom, which method comprises administering a therapeutic active amount of a preparation comprising TTO in a stable water-in-oil emulsion of alkali or ammonium salts of organic fatty acid; said emulsion is also stable when converted into an oil-in-water emulsion to said aquatic animal.

Abstract: A non-phytotoxic fungicidal composition comprising an alkali or ammonium salt of a high MW organic fatty acid forming an emulsion, and tea tree essential oil, terpinen-4-ol oil solubilized in the emulsion, and a method of producing the aforesaid non-phytotoxic biocide, including the steps of admixing alkali or ammonium salts with organic fatty acids so an emulsion is obtained, and admixing terpinen-4-ol oil in the emulsion until full solubilization is obtained.