Webb's Bio-Block Pro 5 lbs. for Large Ponds & Lakes

Webb’s Bio-Block Pro is a powerful blend of live beneficial bacteria and enzymes designed to naturally improve water quality, targeting excess nutrients and organic waste that lead to poor water quality. With regular use, Webb’s Bio-Block Pro works to break down and digest unwanted organic debris, helping reduce sludge accumulation, improve oxygen levels, and promote clearer water. Directions for use: For best results, place block in an area near water movement or aeration to increase the dispersion of beneficial bacteria throughout water body. One block treats up to 5 acre-feet of water for 30-45 days.

• Non-toxic, 100% safe for all aquatic life
• Reduces odors caused by hydrogen sulfide, dead plant material, and animal waste
• Improves dissolved oxygen levels and water clarity
• Dissolves away organic sludge and reduces nutrients
• Directions for use: For best results, place block in an area near water movement or aeration to increase the dispersion of beneficial bacteria throughout water body. One block treats up to 5 acre-feet of water for 30-45 days.