FISH PARASITE ELIMINATOR AND METHOD FOR USING THE SAME AS ALGAECIDE OR GENERAL MICROBICIDE

PROBLEM TO BE SOLVED: To obtain a fish parasite eliminator using dissolvable copper ion-containing glass, which can simply and stably supply copper ions in a constant concentration, can enlarge the dissolution rate of the copper ion-containing glass, and can finely control the dissolution rate, and to provide a method for using the fish parasite eliminator as an algaecide or general microbicide. SOLUTION: The fish parasite eliminator is characterized by containing the copper-containing phosphate glass, especially P2O5-Na2O-CuO-based glass. The P2O5-based glass enables the efficient elusion of the copper ions. The glass has slow or quick elution performance, when containing the CuO in an amount of 2 to 30 mol. %, and is suitable for uses in fish parasite eliminators for appreciation water tanks and stream system culture water tanks, and in algaecides and general microbicides. The dissolution rate can further finely be controlled by the introduction of CaO. COPYRIGHT: (C)2004,JPO&NCIPI