One word. Clipper.
This is a newer product to the aquatic pest management industry and I can attest from personal experience that this product works amazing on algae. And it keeps it away for a much longer time than other algaecides. The cost is not the cheapest, but when you only have to apply 6 ounces of the product per surface acre of treatment area... It is a very cost effective way of algae management.
Regarding Tilipia for a means of control... That's hell of a lot of money to spend on fish that will NOT control the algae as previously stated. Besides, that is a hell of a lot of fish excreatment in the water that will only add to the nutrient load and further algae problems.
Clipper. It's worth it!
Pro, I'm sorry, the correct species of Tilapia for the area does indeed control algae...proven in 1000's and thousands of ponds. Tilapia utilize virtually all nutrient they consume at a rate of 1.2:1...that "excretement, is nearly devoid of nutrient. Unlike other fish waste.