To provide an aquarium apparatus in which a space in the aquarium can effectively be utilized more and plankton can stably be bred for a long term with a simple configuration, and provide a partition member for use in the same.SOLUTION: An aquarium apparatus concerning one aspect of the present invention includes: an aquarium a discharge pipe arranged in the aquarium and discharging water a suction pipe arranged in the aquarium and sucking up water and a partition member including a partition plate formed of at least any one of a through-hole and a gap, and a pipe storage member connected to the partition plate and storing the discharge pipe, and also partitioning the inside of the aquarium into a main chamber and a sub-chamber. Also, the partition member concerning one other aspect of the present invention includes the partition plate formed of at least any one of the through-hole and the gap, and a pipe storage member connected to the partition plate and storing the discharge pipe.SELECTED DRAWING: Figure 1【課題】より水槽内の空間を有効に活用でき、簡便な構成で浮遊生物を長期に安定して飼育することのできる水槽装置及びこれに用いられる仕切部材を提供する。【解決手段】 本発明の一観点に係る水槽装置は、水槽と、水槽内に配置され水を吐出する吐出管と、水槽内に配置され水を吸引する吸引管と、貫通孔及び間隙の少なくともいずれかが形成される仕切板、及び、仕切板に接続され吐出管を収納する管収納部材を備え、水槽内を主室と副室に仕切る仕切部材と、を備えたものである。 また、本発明の他の一観点に係る仕切部材は、貫通孔及び間隙の少なくともいずれかが形成される仕切板と、仕切板に接続され吐出管を収納する管収納部材と、を備えたものである。【選択図】 図1
