Fish can get seasick according to German scientist

Fish can indeed become seasick according to a German scientist, who even says that they can go green around their gills. Dr. Reinhold Hilbig, a zoologist from Stuttgart was studing the effects of humans in space when he tested the effects of weightlessness in water.

He put 49 fish into an aquarium and then sent them up in a plane that took a steep dive towards earth, mimicking a loss of gravity for astronauts. He claimed that eight of the fish started turning around in circles.

The affected eight were later killed so that their brains could be looked at to determine the cause of their sickness.
Dr. Hilbig claims that loss of eye contact with water movement and the emmense vibrations are what caused the fish to become sick.