Possible Cause
Mustard Algae
Solution
Clean filter with FILTER CLEANSE or FILTER FRESH. Brush affected areas. Use ALGIMYCIN 2000 , ALGIMYCIN YELLOW or STRIKE OUT algaecide. Use DROP ‘N VAC to help remove dead algae.
Preventative Maintenance
Use 8 oz. per 10,000 gallons of ALGIMYCIN 2000 weekly to prevent algae growth.