- Main article: Baby Playpen
The Aquarium Calf can be stored in the Baby Playpen. The Baby Playpen can be harvested every 1 day. When harvesting a Baby Playpen containing at least one Aquarium Calf, in addition to currency, it is possible to find Aquarium Calf.
- Main article: Mastery
|Mastery Level||Mastery Points|
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