Here, fishy fishy fishy!

Would anyone happen to have any tips on how to get the 20000 points I need for the Fishing Game in Legend of Legaia? Are there any special tricks for catching Lippians? I have the best rod and every type of lure, and I’m using the pond near Buma. Normally, I catch Fly Pie fish and Chargers, but they aren’t worth that much.