Can be grown from a player's own Mystery Baby.
- Main article: Aquarium
The Hawaiian Shirt Seahorse can be stored in the Aquarium. The Aquarium can be harvested every 1 day. When harvesting the Aquarium containing at least one Hawaiian Shirt Seahorse, in addition to currency, it is possible to find two (2) Aquarium Babies (exclusive rare), one (1) that can be placed or stored in the gift box, and one (1) to share via wall post.
- Main article: Mastery
|Mastery Level||Mastery Points|