Chilodonella is a type of ciliate protozoan that has a unique mode of movement. It moves using hair-like structures called cilia that cover its entire body. These cilia beat in coordinated waves, propelling the organism through the water in a swimming motion. Chilodonella can move quickly and efficiently through the water, allowing it to locate and attach to its host fish. Once it has attached to the fish, it can feed on its host's body fluids, causing damage to the fish's skin, gills, and other tissues. Chilodonella can also move between fish and from one location to another within an aquarium through the water or by attaching to contaminated equipment or other surfaces.