A hydroponics apparatus capable of maintaining a plant storage room at an optimum room temperature and maintaining a suitable environment in which plants are easily grown is provided. A household hydroponic cultivation apparatus capable of growing a plant P indoors, wherein a plant storage room 10 in which a plant growth unit 15 for holding the plant P in a cultivation container 4 is stored, and a plant storage room The cultivation case part 3 which has the light source room 20 provided with the irradiator 5 which irradiates light to a plant is provided, and the cultivation case part sends the air from a plant storage room to a light source room. The 1st fan 1 for plant storage room ventilation And a second fan 2 for light source room ventilation that discharges air from the light source room to the outside, and a control unit 6 that can control the first fan and the second fan independently, The control unit can switch between a winter circulation operation state in which the fan is always operated and the second fan is inactive or intermittent operation and a ventilation operation state in which the first fan and the second fan are always operated, and the plant is stored. The room is maintained at room temperature suitable for plant growth. It is configured. [Selection] Figure 2【課題】植物収納室を最適な室温に維持でき、植物を育成し易い好適な環境を保つことができる水耕栽培装置を提供する。【解決手段】屋内で植物Ｐを育成可能な家庭用の水耕栽培装置であって、栽培容器４に植物Ｐを保持させる植物育成ユニット１５が収納される植物収納室１０と、植物収納室内の植物に光を照射する照射器５を設けた光源室２０とを有する栽培ケース部３を備え、栽培ケース部は、植物収納室から光源室へ空気を送る植物収納室換気用の第１ファン１と、光源室から外部へ空気を排出する光源室換気用の第２ファン２とを、有し、かつ、第１ファン・第２ファンを独立して制御可能な制御部６を備え、第１ファンを常時稼働させ、かつ、第２ファンを非稼働乃至間欠稼働とした冬季循環運転状態と、第１ファン・第２ファンを常時稼働させる換気運転状態に、制御部によって切換自在とし、植物収納室が、植物の育成に適した室温に維持されるよう構成されている。【選択図】図２
