Macro-Zyme™ is the perfect choice to control and eliminate sludge and foul odors in tanks, ponds, and lakes.  Macro-Zyme contains a high concentration of facultative anaerobic bacteria that will rapidly reproduce and consume organic material in your pond or lake. When introduced in your water, This easy-to-use product quickly releases billions of beneficial bacteria & enzymes that work around the clock to clean, neutralize, and purify. Application is simple — just apply Macro-Zyme in water 55°(F) or warmer and let it go to work.

• Safe and non-toxic
• Clarifies water and reduces sludge
• Reapply every 2 weeks, April through October
• Each 8 oz. water-soluble bag treats 1/2 acre foot of water