To provide water supply members capable of suitably supplying a nutrient solution transferred from a connected water supply pipe into a hydroponic water tank, while being connected to the end of the hydroponic water tank and ensuring watertightness of the end, and to provide water supply structures of hydroponic water tank using the same.SOLUTION: Provided is a water supply member that is arranged at the end of a hydroponic water tank used in a hydroponic device, comprising a pipe connection, an end member provided with the pipe connection, and a water tank connection that connects the end member to the end of the hydroponic water tank 53.SELECTED DRAWING: Figure 1【課題】水耕栽培用水槽の端部に接続して端部の水密性を担保しつつ、接続した給水用配管から移送した養液を、水耕栽培用水槽内に好適に給水可能な給水用部材とこれを用いた水耕栽培用水槽の給水構造を提供する。【解決手段】水耕栽培装置に用いる水耕栽培用水槽の端部に配設する給水用部材であって、配管接続部と、配管接続部が設けられた端部材と、端部材を水耕栽培用水槽５３の端部に接続する水槽接続部と、を具備する給水用部材。【選択図】図１
