Eels are a great choice of pet for any owner looking to branch out beyond the typical aquarium residents. Many people are ...

How do you perk up a lonely fish? This may sound like the start of a particularly silly joke, but it was a very real challenge faced by staff at a Japanese aquarium when they noticed their sunfish was ...

Japanese aquarium staff used cut-out human companions to cheer up a lonely sunfish, leading to improved health.

A sunfish at Japan's Kaikyokan Aquarium experienced health issues due to the lack of human interaction after the aquarium ...

"When an aquarium in Japan closed to the public for restorations, the aquarium's beloved sunfish grew lonely without visitors ...

An aquarium in Japan has come up with a unique and out-of-the-box idea to cheer up its lonely resident sunfish after the ...

First documented in Florida in 1997, the Asian swamp eel keeps nudging north in Florida, threatening fragile landscapes.

Scientists said they suspect the swamp eel may have escaped from a tropical fish farm or have been a pet released from an aquarium. The species, they believe, is already firmly established in ...

By the late 1990s, it was found in several waterways in Florida near Tampa, Homestead and Miami The eel is believed to have invaded Florida via either an aquarium release and/or a fish farm escape ...

The Kaikyokan Aquarium in Shimonoseki, Japan, which is undergoing renovations, revealed in a post on X that its staff had to think out of the box to help one of its sunfish struggling with the change.

The solitary fish named Mambo stopped eating and seemed to be missing its human visitors—so aquarists attached photos of ...