Use to clean glass or acrylic aquariums, hoods, filters, frames and stands and other aquarium equipment. Cuts through the white crusty mineral deposits all over the aquarium. Cleans and forms an invisible protective barrier to reduce aquarium maintenance. Safe for use with all fish or plants. Convenient bottle with spray trigger. Just spray on and wipe off. Non-toxic to fresh and saltwater fish. Sizes available #123 8oz. (237 ml) bottle with trigger spray.