Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants Any experience with Green Clean?

Cecil - GREENCLEAN won't help you with Chara. However, it has performed well on various blue-green and filamentous algae growths - including benthic mats. But, its effectiveness is very limited on surface-mats of filamentous algae. An ample amount of readily available water is necessary to trigger and sustain GREENCLEAN's activity (it is an oxydizing agent). When it is applied to surface-mats of FA, there simply isn't enough free water on top of the mat to fuel the reaction. GREENCLEAN is best used on suspended and submerged growths of algae.