Aquarium or Akvarium is a Russian rock group formed in Leningrad in 1972. The band had many member changes over its 40-year history, and at the end the only remaining original member was lead singer and founder Boris Grebenshchikov. Former band members have included Anatoly Gunitsky, Mikhail Feinstein, Dyusha Romanov, Vsevolod Gackel, and Sergey Kuryokhin.
