Goldfish, one of the earliest fishes to be domesticated, is one of the most commonly kept aquarium fish. Scientifically known as Carassius auratus auratus, Common goldfish are always a favourite among aquarium lovers. 

Golden Sucker fish, a bottom dweller in the aquariums, is about 15cm long. With the help big suckermouth Golden Sucker fish used to scrap algae and  helps to keep the aquarium clean always.  This video has been shot from an Aquarium Show held at Palakkad in Kerala state, India.