It is very important to identify these flies or gnats. The type of fly/gnat is critical in providing useful advice for control. If the fly is tiny and black, it may be a fungus gnat that lives in the wet soil of potted plants. Small tan flies with red eyes are fruit flies that breed in fresh fruit – especially bananas – and garbage. Other types of flies breed elsewhere. Please get the gnats identified, and we can help you with control solutions.