Lineage II/Fishing

The Fish and Other Catches
Fish and chests get stronger as your expertise increases, changing color as they advance.

Each 3-level color has a "Small", normal, and "Big" version of the fish and chests, and you will catch one level below your expertise to one level above your expertise. This means you will need 12 inventory slots for the catch - 3 levels x 3 types of fish, plus 3 chests.

Spending the Rewards
You buy new abilities with your Proof of Catching a Fish. Normally you can train one level of the skill for every 10 levels of your character, plus one. So you can train Expand Inventory level 3 at level 20.

Expand Trade can only be trained to level 3, at levels 40, 55, and 65. Expand Dwarven Trade can only be learned by dwarves, at the normal skill trainer.