POLICE found more than 100 cannabis plants and growing equipment at a house in Newhaven.
They have arrested a man on suspicion of producing cannabis and abstracting electricity.
He was released on police bail pending further enquiries until April 10.
Officers searched a home in Lewes Road under the Misuse of Drugs Act using a warrant.
PC Jay Denney from the Neighbourhood Policing Team said: “Anyone with information relating to drug misuse can call Sussex Police on 0845 60 70 999 or the independent charity Crimestoppers anonymously on 0800 555 111.”