- Main article: Marine Observatory
The Abu can be stored in the Marine Observatory. The Marine Observatory can be harvested every 12 hours. When harvesting the Marine Observatory containing at least one Abu, it is possible to find Red Fish Scale Scales. One Red Fish Scale Scale is for the farmer, and is sent to the farmer's Marine Observatory. The other Red Fish Scale Scale for the farmer's friends, and can be shared to the player's wall.
- Main article: Mastery
|Level 1||Level 2||Level 3||Mastery Total|
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