I'm a fan of fishing. It's not as much gold income as LK can be, but it's a cheaper investment. I sold about 125 fish for 250b last night.Different lakes provide different fish. The easy-to-sell fish are...
Bassken: Goldfish, Guppies, Stripers, Rares (depending on the market and if anybody is questing masks)
Gambino: Tuna, sometimes Rares
Durem: Boldurs, Rares (the Rares at Durem are used in Wings quests for alchemy and are worth trillions. A Diamond can sell for 2.5T easily if your buyer will fork over the price.)
Note on Rares: The odds of catching a rare fish are approximately 1:90,000. Many seasoned fishers, myself included, have never caught one. They can be made from 1,000 large fish (stripers, tunas, boldurs) and each large makes a different rare. (I will get back on later when I have my laptop and put the list up.) Although 1000 doesn't seem like much, it can take some time and it requires trading between fishers. It's all quid pro quo in the fishing community. If anyone has questions they are free to PM me
Rare Trading Paths
BasskenRed Guppy>Blue Bass>Green Striper>
Candy StriperYellow Guppy>Brown Bass>Blue Striper>
Mutha GuppaOrange Guppy>Green Bass>Grey Striper>
Bass'terdGambinoBlue Seedkin>Warm Rainbow Trout>Spicy Tuna>
Buckin BinoPink Seedkin>Frozen Rainbow Trout>Dicy Tuna>
Chargin ChinoGreen Seedkin> Cool Rainbow Trout>Icy Tuna>
Tootin TinoDuremWhite Pebbo>Blue Biter>Sand Boldur>
Diamondback LionBrown Pebbo>Black Biter>Stone Boldur>
Emeraldback LionBlack Pebbo>Pyrite Biter>Slate Boldur>
Rubyback LionFor more information on Fishing, check out
Gaidin's Fishing Guide. It has literally almost everything you could want to know, and links to things mentioned in the guide and to things that Gaidin does not discuss.