The Pond Digger Super Strength Beneficial BacteriaThe Pond Digger SUPER STRENGTH Dry Bacteria has been scientifically blended and tested to produce maximum sludge eating, organic reducing results in ponds, lakes, streams, hybrid Koi ponds and water gardens. Our personal water treatment line will support clear water, healthy fish and pristine water quality. This is the bacteria blend that we recommend for weekly maintenance on PROBLEM PONDS & waterscapes. If you are not having a problem you can switch