Fish farming with floating net cages (KJA) is one method of making use of Indonesia's marine resources. Regrettably, KJA's shortcoming is the accumulation of fish feed, which lowers the quality of the water. As a result, this study will create a decision-making system that KJA can use to move autonomously and use Type 2 Fuzzy Logic (T2FL) to locate the optimal site for high-quality water. Four …