goldfish
i work in a sewer plant. about 5-6 months ago some one flushed a goldfish. he was about 2-3 inches long and now is about 7-8 inches. he lives in a 288,000 gollon clarifier tank, i don't know what he's been eating but i know we have a prolific midge hatch, as well as daphnia( water fleas). he's pretty frisky now and all i have at my disposal are a 20"x24" net( which might be the best idea) and midge flies. i think he's eating the larva as i've never seen him rise.
anyway how are we gonna catch this sucka? any suggestions...