Two people dressed as Santa Claus and an angel dove in an aquarium in Berlin, where they fed the marine animals.
This electric eel is named Miguel Wattson. He gives off electric shocks when he is feeding or excited.
An Art Aquarium featuring 5,000 goldfish in illuminated tanks has made its debut in China.
The butterfly fluttered its wings on the other side of the glass at the aquarium causing the seal to follow its every move.