Our proprietary pond bacteria formulation contains a blend of beneficial pond bacteria that can perform in water temperatures as high as 110 F, and as low as 35 F.  We have pressed our pond bacteria powder into pre-measured dissolvable tablets, which sink to the bottom of the pond, to help reduce bottom-sludge (muck). Just apply the dissolvable tablets directly into the pond water.  This pond bacteria formulation will also naturally eliminate murky water, excess fish food, fish wastes, odors, problem nutrients (such as nitrate and phosphate) and toxins (such as ammonia and nitrite).