The aquaculture sector carried out in ponds and ponds is part of one of the sectors or fields that can be economic for most people in Indonesia, especially shrimp farmers. In the process of shrimp farming in shrimp ponds, water quality is a very important factor for survival and determines the productivity of shrimp farming. Decreasing water quality parameters in ponds, such as pH, temperature, turbidity, and water salinity will result in decreased shrimp desire to eat, the process of fattening or enlarging shrimp will be slow, and become more susceptible to disease. In the end, this condition is what causes great losses to pond farmers. Based on these problems, the authors conducted research on making a prototype of monitoring the quality of pond water samples using the parameters of temperature, salinity, pH and turbidity of water to be able to determine whether the quality of pond water samples in good condition or not, as well as designing actuators to be able to maintain the quality of pond water samples used for observations in aquariums using Diffuser Aerator and Water Filter. From the testing of tools carried out for 7 days, data from the measurement results of each sensor can be monitored in real time by connecting to the Firebase Hosting web which is then displayed in the Smart Pond application. Diffuser Aerator and Water Filter are programmed to turn on when the Temperature parameter is at <24°C or >32°C, and the Salinity parameter is at <300ppm or >600ppm, the programme that has been set can function properly to improve or maintain pond water quality. The results obtained for the measurement of turbidity of pond water on the first day 1,132 NTU and on the seventh day 504 NTU, measurement of pond water temperature on the first day 29 °C and on the seventh day 29 °C, measurement of salinity (TDS) on the first day 2,994 PPM and on the seventh day 635 PPM, measurement of pH of pond water on the first day 6.5 and on the seventh day 6.5.
Keyword: Shrimp pond water quality, Temperature Sensor, TDS Sensor, Turbidity Sensor, pH Sensor, Diffuser Aerator, Arduino Nano