Ask any aquarium keeper, and they’ll tell you that their least favorite part about the hobby is cleaning their fish tanks.

How do you perk up a lonely fish? This may sound like the ... made from cardboard cutout faces and aquarium uniforms on hangers stuck to the glass. Staff have been waving at the sunfish, too ...

The “aquarium toilet” at the HiPoPo PaPa restaurant here is surrounded by glass ... morning cleaning the tank and its filtering device. The tank contains around 300 tropical fish, which ...