<；P>；PROBLEM TO BE SOLVED: To provide a small individual aquarium which can eliminate the individual difference of a vital reaction on the development of a medicine, has the minimum size not affecting the growth of a fish, and enables various physiological measurements. <；P>；SOLUTION: This small individual aquarium used for the adult of an experimental small fish on the research and development of a medicine is a small transparent cylindrical aquarium which ensures a minimum size for raising the small fish without giving a biological stress to the fish, minimizes the individual differences of physiological reactions for the growth of the fish and for the medicine. Since a structural characteristic permitting to vertically stack aquariums can be given to the aquarium, the aquarium can be used for a large scale experiment system such as the screening of a medicine candidate compound with the adult of the small fish. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
