Control Chara Algae

Manual/ Mechanical Control:

Physically raking chara from the water can be a somewhat effective method of control. Chara can re-grow from spores or fragments that remain in the water.

Algaecide Control:

Chara algae is best treated when it is young and has fewer calcium deposits. A combination of Mizzen algaecide and copper sulfate crystals will offer the best control.