How to Keep a Creature I Found on Fish World
- 1). Click on the creature that wanders into your aquarium.
- 2). Select "Keep the Creature."
- 3). Click on "Share." This will post a notification to your wall about the creature and ask your friends to join to get their own creature.
- 4). Select "Share" again to confirm the post. This will share the post with all of your friends and allow you to keep the creature.
Source...