Indonesian aquaculture currently has enormous potential, particularly in freshwater lobster cultivation. Freshwater lobster has a relatively high selling value because it is popular and delicious. However, many considerations must be made in crayfish cultivation, such as temperature control and water quality. The parameters of water quality have a significant impact on maintaining and increasing production. Maintenance is still done manually on a regular basis which takes a long time. As a result, in this study, the authors developed an Internet of Things (IoT)-based system to monitor water quality in lobster farming ponds using the Antares IoT platform. According to the findings, the monitoring dashboard successfully displays the temperature and dissolved water content values in real-time, can automatically set points, and displays the value of each sensor in a comparison graph. This system can help users monitor water quality in freshwater crayfish cultivation in real-time, simplifying maintenance and increasing fish productivity.