The present invention relates to a plant pot for hydroponics installed in a fishbowl passing through water in the fishbowl using an upper filter method so as to provide nitrogen and ammonia for a planted plant as nutrients and resupplying the purified water to the fishbowl. The plant pot comprises: a case member which is installed in the upper end of the fishbowl to cover an opening of the fishbowl and in which accommodation space connected to the opened upper part is connected and a plurality of outlets are formed in the lower surface； and a container member with a shape of an open-top container in which a plurality of drains are formed in the lateral or lower surface and which is installed in the accommodation space of the case member, and wherein the plant is planted and bamboo charcoal is filled.본 발명은 어항의 물을 상부 여과방식으로 통과시켜 질소 및 암모니아 성분을 식재된 식물의 양분으로 공급하고, 정제된 물은 어항으로 재공급하는 어항에 설치되는 수경재배용 화분에 관한 것으로서, 어항의 개구를 차폐하도록 어항의 상단에 설치되고, 개방된 상부와 연결된 수용공간을 형성하되, 저면에 복수의 토출구가 형성된 케이스부재와, 상부가 개방된 용기의 형태로, 측면 또는 저면에 복수의 배수구가 형성되고, 상기 케이스부재의 수용공간에 설치되며, 내부에 식물이 식재되고 대나무 숯이 충전된 용기부재를 포함한다.
