| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel aquatic protozoan expellent capable of exhibiting an excellent drug effect and being produced at low production cost, and a production method thereof.SOLUTION: The aquatic protozoan expellent includes catechin and tannin, the tannin is a complex of catechin and caffeine. According to such a configuration, with respect to the aquatic protozoan being parasitic to fresh water aquarium fishes such as a goldfish and colored carps, an excellent expellent effect can be exhibited, relative to a case that a catechin element is used. In addition, the caffein being harmful to fishes, is in a deactivation state because of being a complex state with the catechin, so that, the fishes are not damaged.SELECTED DRAWING: Figure 1 |
