Tetra, 4 Count, Pond Sludge Reducer Block, Contain Billions Of Beneficial Bacteria & Enzymes That Quickly Break Down The Unsightly Wastes That Accumulate On The Bottom Of Ponds As A Sludge Layer, Also Ideal When Setting Up A New Pond & During The Spring Start Up & Fall Shut Down Of Established Ponds, Blend Of Bacteria & Enzymes Is Beneficial For Developing & Maintaining The Ponds Biological Balance Resulting In A Cleaner & Clearer Pond.
