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ENY-670: Some Small Native Freshwater Fish Recommended for Mosquito and Midge Control in Ornamental Ponds

Figure 8. Least Killifish (Heterandria formosa) to 1 inch. Three black spots at the bases of the dorsal, anal, and caudal fins. Dark stripe along side. Non-game fish. One of the best mosquito controlling species.

Credit: FloridaFisheries. com (FF&WCC)