PROBLEM TO BE SOLVED: To provide a hydroponic device by which vegetables can be cultivated indoors and in which cultivated vegetables can be grown in an optimum environment.SOLUTION: A cultivation device body of a hydroponic device is sectioned to form: a cultivation room in which a nursery bed is disposed； and an illuminant room in which an illuminant is arranged to emit light to the nursery bed from above. The hydroponic device includes: a first ventilation system which circulates air outside the body through the cultivation room； and a second ventilation system which circulates air outside the body through the illuminant room. A single ventilation fan is disposed so that air is forcibly circulated through the first ventilation system and the second ventilation system.【課題】 室内での野菜の栽培を可能とする水耕栽培装置において、栽培する野菜を最適な環境で育成し得る水耕栽培装置の提供。【解決手段】 栽培装置本体に、苗床を配置する栽培室と、前記苗床に向けて上方より光を照射する光源を配置した光源室とが区画形成され、前記栽培室内を通して本体外空気を流通させる第一通気系、および前記光源室を通して本体外空気を流通させる第二通気系を備え、前記第一通気系および第二通気系に強制的に空気を流通させる単一の通気用ファンが設けられている水耕栽培装置。【選択図】 図１２
