PROBLEM TO BE SOLVED: To provide a hydroponic device allowing to enjoy plant growing conditions, intended for cost reduction and miniaturization, and causing no overflow of nutritious liquid.SOLUTION: This hydroponic device is such that a plurality of cultivation trays 3 each storing hydroponic nutritious liquid 27 are installed in a plurality of stages in the vertical direction in a cultivation chamber 2c in a showcase 2, each of the cultivation trays 3 stores the nutritious liquid individually without circulating the nutritious liquid 27 between the other cultivation trays 3, and bubbles are produced in the nutritious liquid 27 in each of the cultivation trays 3 by supplying air from an air pump 10 to an air blowing hose 16 through an air hose 12 followed by blowing the air in the nutritious liquid 27.【課題】植物の生育状態等を観賞できると共に、コストの低減および小型化を図り、更に、養液の溢れ出しなどが生じない水耕栽培装置を提供する。【解決手段】ショーケース２内の栽培室２ｃには、水耕栽培用の養液２７をそれぞれ貯留する複数の栽培トレイ３が、上下方向に複数段に設置され、各栽培トレイ３は、養液２７を他の栽培トレイ３との間で流通させることなく、個別に貯留するものであり、各栽培トレイ３の養液２７に、エアポンプ１０からの空気を、エアホース１２を介してエア噴出ホース１６に供給し、養液２７内で噴出させて気泡を発生させる水耕栽培装置。【選択図】図２
