As many players know in Lunia_BR fishes can be sold to other players, or traded in for beads. When you trade in fish for beads, you also obtain gold. You will often obtain more gold by trading in fish for beads than if you were to sell the fish in stacks. But because you can only trade for beads once per day, that it is often easier to sell off extra carps.

There are fishing quests from Fishing Master Hemingway that give you items Lunia Gold. Such as dimlies, that you can also get a variety of rare items that can be used or sold. Beads can be traded in for items at the NPC Duran. You can only get one bead of a color per day, so it will take more than one day to get items with your beads.

The only noticeable difference between bait other than price is catching time. So unless you want to burn through a bunch of high bait in half an hour while you're eating dinner, most people buy low baits and leave their character fishing whily they are at school, work, or asleep.