Sludge Remover Bacteria blocks contain a proven blend of enzyme producing pond bacteria which naturally reduce odor causing, decomposing organic debris and muck. Sludge is the result of fish waste, dead algae or plant material, uneaten fish food, leaves and other debris. Blocks simply dissolve in the water for easy application in water gardens and koi ponds.

Sludge Remover Bacteria – 1 oz. dissolvable blocks

• This unique formulation is produced using a “no mess” block, which immediately begins to dissolve upon contact with water
• Reduces toxic ammonia and nitrite
• Reduces problem causing nitrate and phosphate
• Reduces murky water caused by organic wastes
• Reduces organic bottom sludge (muck)
• Reduces odors
• Safe for fish, pets and family
• Cold water strains for effectiveness down to 45°F