Disclosed is an ornamental smart farm apparatus for growing plants with fish tank water. An ornamental smart farm apparatus for growing plants with fish tank water comprises: a fish tank (110) which raises fish； a water pump (120) which pulls up fish tank water and drains water； a water culturing unit (130) which grows plants with drained fish tank water； and a controlling unit (140) which drives a water pump (120) and controls a circulation amount of fish tank water. A fish tank (100) cages and raises ornamental fish, and a water pump (120) pulls up fish tank water and has a small capacity. Moreover, a water culturing unit (130) circulates fish tank water which is drained with a multiple composition, and grows plants. Additionally, a controlling unit (140) drives a water pump (120) according to a circulation amount of fish tank water which is based on a drained amount. Accordingly, fish tank water for growing ornamental fish is circulated and thus plants can be grown by water culture. Additionally, since light is outputted in a Led, plant photosynthesis is controlled and a growth condition of plant is differently applied. Moreover, temperature and humidity are measured by a sensor and a led is controlled on the basis of measured data, and thus plant photosynthesis is differently applied.어항물로 식물을 키우는 관상용 스마트팜 장치가 개시된다. 물고기를 키우는 어항(110)； 어항 물을 끌어 올려 배수하는 워터 펌프(120)； 배수된 어항 물로 식물을 키우는 수경부(130)； 및 워터 펌프(120)를 구동하여 어항 물 순환량을 조절하는 제어부(140)를 포함하고, 어항(110)은 관상용 물고기를 가두어 키우고, 워터 펌프(120)는 어항 물을 끌어 올리는 소용량이고, 수경부(130)는 다단 구성으로 배수된 어항 물을 순환시켜 식물을 수경 재배하고, 제어부(140)는 배수량에 기반한 어항 물 순환량에 따라 워터 펌프(120)를 구동한다. 따라서 관상용 물고기를 키우는 어항물을 순환시켜 식물을 수경 재배할 수 있고, 식물에 엘이디로 불빛을 출력하여 식물 광합성을 제어하고 식물의 생육 조건을 다르게 적용하는 장점이 있고, 센서로 온도와 습도를 측정하고 측정된 센서 데이터에 기반하여 엘이디를 제어하여 식물 광합성을 다르게 적용하는 효과가 있다.
