<![CDATA[Nile tilapia farming in floating net cages in Lake Limboto provides economic benefits for local communities, yet it operates within an ecosystem affected by lake shallowing, low water transparency, high phosphate concentration, and organic matter accumulation. This study analyzes aquaculture feasibility by integrating ecological, technical, social, and economic dimensions. A descriptive quantitative and qualitative approach was applied. Data were collected through water quality measurement, observation of farming practices, interviews, questionnaires involving 30 respondents, and secondary data review. Economic analysis covered 25 farmers with complete cost and revenue records using the Revenue Cost Ratio. The results show that temperature, pH, dissolved oxygen, nitrate, and nitrite remain supportive of tilapia culture. In contrast, water depth, transparency, phosphate, and organic matter are major ecological constraints. Technically, local farmers are familiar with floating net cages, while access to seed and feed is adequate. Social support is also strong, as 90.0 percent of respondents reported community support and 93.3 percent stated that aquaculture contributes to household income. Average production cost was IDR 7,524,000 per cycle, revenue was IDR 10,508,000, and profit was IDR 2,984,000. The Revenue Cost Ratio of 1.40 indicates economic feasibility, with 24 of 25 businesses classified as feasible. These findings reveal a clear imbalance between economic profitability and ecological pressure. Nile tilapia farming in Lake Limboto is therefore conditionally feasible and should only be developed through aquaculture zoning, stocking control, feed efficiency, and regular water quality monitoring.]]>
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