PROBLEM TO BE SOLVED: To provide a hydroponic apparatus having vertically placed cultivation pipes which makes a cleaning work of the cultivation pipe easier.SOLUTION: A hydroponic apparatus 1 comprises: vertically placed cultivation pipes 2 which have planting holes 23 into which plant support bodies 6 are inserted on a side face thereof; a nutritious liquid supply pipe 3 which is connected to an upper end side of the cultivation pipes 2; a nutritious liquid recovery pipe 4 which is connected to a lower end side of the cultivation pipes 2; a nutritious liquid supplier 5 which supplies nutritious liquid, which is recovered from the nutritious liquid supply pipe 3 via the cultivation pipes 2 and the nutritious liquid recovery pipe 4, to the nutritious liquid supply pipe 3. The cultivation pipes 2 are constituted to be detachable from the nutritious liquid supply pipe 3 and the nutritious liquid recovery pipe 4.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】縦置きの栽培パイプを有する水耕栽培装置において、栽培パイプの洗浄作業を容易にする。【解決手段】水耕栽培装置1は、植物保持体6が挿入される植栽穴23を側面に有する縦置きの栽培パイプ2と、栽培パイプ2の上端側に接続される養液供給パイプ3と、栽培パイプ2の下端側に接続される養液回収パイプ4と、養液供給パイプ3から栽培パイプ2と養液回収パイプ4を介して回収される養液を養液供給パイプ3に供給する養液供給装置5とを備えている。栽培パイプ2は、養液供給パイプ3及び養液回収パイプ4から取外し可能に構成されている。【選択図】図1