A sunfish at the Kaikyokan aquarium in Shimonoseki, Japan, began showing signs of distress after the facility closed for renovations on December 1, 2024. The fish, which had been a popular attraction since its arrival in February 2024, stopped eating and exhibited unusual behavior until staff intervened with cardboard cutouts to mimic visitors.
- Sunfish lost appetite after aquarium closed.
- Human cutouts helped sunfish regain health.
- Sunfish became popular attraction since February.
- Staff suspected digestive issues initially.
- Aquarium renovations lasted six months.
- Keepers hope for fan return post-renovation.
On January 21, 2025, the sunfish ate for the first time in a week following the introduction of the cutouts, marking a positive turn in its recovery, according to aquarist Moe Miyazawa.
The Kaikyokan aquarium has been a home to a sunfish, a member of the blowfish family, since February 2024. Known for its distinct shape and large eyes, the sunfish quickly became a favorite among visitors. However, when the aquarium closed for renovations, the absence of an audience seemed to affect the fish’s behavior, leading to a loss of appetite and signs of distress.
Initially, the aquarium staff suspected digestive issues and reduced the fish’s food intake while trying to comfort it during construction noise. Despite these efforts, the sunfish’s condition did not improve until staff members suggested creating a more engaging environment by simulating the presence of visitors. They hung their uniforms and placed cardboard cutouts of smiling people outside the tank.
After implementing this strategy, the sunfish responded positively. The following morning, it began eating again, marking a significant recovery. The staff now frequently visit the sunfish, waving at it to encourage further interaction. They are hopeful that many fans will return to see the sunfish once the aquarium reopens in the summer of 2025.
The situation at the Kaikyokan aquarium highlights the importance of social interaction for certain species, including the sunfish. The creative approach taken by the staff not only aided in the fish’s recovery but also showcased the lengths to which caregivers will go to ensure the well-being of their aquatic residents.
