Park Workers Net Massive 9lb Goldfish From South Carolina Lake During a routine water quality check on Oak Grove Lake, South Carolina, parks and recreation surveyors were astonished to pull a 9-pound (approx. 4-kilogram) goldfish from the water. According to Ty Houck, director of Greenways, Natural and Historic Resources for the Greenville County Recreation District, the fish was roughly 15 inches long, an unusual discovery that’s promising for the health of the lake. “Anyone missing their goldfish?” Greenville Rec posted on Facebook the Monday following the discovery. They were only half joking, as it isn’t unheard of for pets to turn into monster goldfish after making their way into a lake.