Cutrine-Plus is one of the most popular algaecides on the market today. It is a double-chelated copper solution effective against a wide variety of algal species. Cutrine-Plus is the only chelated copper algaecide that is patented on the market today! Cutrine-Plus Granular is best for bottom growing algae such as Chara and Nitella, or for filamentous algae on the bottom.

This granular version is easy to apply for those who don't like messy sprays.