Here is a list of all the Abyss fish ruin locations, how to get their keys from the NPCs, and what rewards you can obtain.

There are a handful of Fish Ruins that you can find scattered throughout Abyss. These ruins have a lock on their door, preventing you from getting inside.

Here is the list of all Abyss fishes, including their prices, locations, rarity, and behavior pattern to help you understand what to catch.