Design and Implementation of Filter Pump Control in a Freshwater Fish Aquarium based on Fuzzy Logic

One of the essential factors in the cultivation of freshwater ornamental fish in the aquarium is the water quality. Quality aquarium water is clear water with appropriate temperature and pH. In this study, the design and implementation of the control system based on fuzzy logic for filter pump work cycle were reported. The fuzzy logic in the controller will provide the strength of filter pump work based on the information on the turbidity level of water obtained from the photodiode sensor and the acidity of the water collected from the pH sensor. The results of the fuzzy logic controller design are implemented in Arduino UNO R3 microcontroller to control filter pump strength. The experimental results show that the controller can improve the water clarity level at the desired level in a reasonably short time. In addition, it was also demonstrated that the system performance was still good even in the existence of disturbance.