Abstract: In this study, we investigated the effects of colored Light-Emitting Diode (LED) light on the growth of fish. Fish farming is a business based on aquaculture, the art of culturing aquatic organisms. To determine optimal fish farming conditions, we experiment with various colors of LED fish tank lighting and monitor the effects of this artificial environmental control on fish growth. We show that the use of LED light control as an eco-bred technology can lead to a reduced production period.