K-Tea algaecide is the best choice for eliminating unsightly and troublesome planktonic and filamentous algae from standing or slow-moving water. K-Tea is a copper-based product that has been proven effective with years of use. Enjoy the performance and application flexibility K-Tea offers for use on a broad spectrum of algae, including Cyanophyceae (blue-green), Chlorophyceae (green), Diatomaceae (diatoms), and Protozoa (flagellates). It works best when applied at the first signs of algal blooms. K-Tea carries "no restrictions" on how soon treated water may be used after application. Water treated with K-Tea can be used immediately for recreation, drinking, livestock watering, golf course, and crop and ornamental plant irrigation.