Weco has been making quality aquarium products for nearly three generations. Established in 1947, Weco was born with the philosophy that a healthy fish is a happy fish. When a need arose to neutralize chlorine and chloramine from municipal water, Weco was at the forefront over 65 years ago. Every aquarium and pond owner has been faced with green water or algae, which means there has always been a need for an algicide to make the job of keeping a fish tank easier. Weco's very own Algicide is the only brand able to carry this name because Weco was the first to file and receive protection for this product way back when.