Check the listing for details. Beneficial Bacteria HydroClear™ Granular Summer Maintenance. Condition: New. Listed at 35.99 USD. Heterotrophic Bacteria and Enzymes 5 Billion CFU/gm. For clean, clear, fresh smelling water. Use when water temperature is 60°F and higher. Heterotrophic Beneficial Pond Bacteria and Enzymes in a dissolvable salt powder.Made in the U.S.A.Heterotrophic beneficial pond bacteria and enzymesNaturally clears waterControls water problem causing phosphateReduces murky waterReduces pond water odorPromotes clean, clear, healthy waterPromotes fish healthMetabolizes fish wasteMetabolizes water problem causing fallen tree leaves and twigsMetabolizes water problem causing sludge and muckMetabolizes water problem causing proteins, cellulose, carbohydrates, and ligninNo unpleasant odorAll natural, no chemicalsNo artificial fillers or preservativesDissolvable salt powderHighly concentrated formula containing billions of beneficial bacteria per gramProprietary blend of 5 bacteria strains that produce multiple enzymesContains: Bacillus subtilis, Bacillus licheniformis, Bacillus amyloliquefaciens, Bacillus megaterium, and Bacillus pumilus bacteriaThe bacteria produce: Protease, Amylase, Ligninase, Lipase, Esterase, Cellulase, Xylanase, and Urease enzymes2 year shelf life Summer Maintenance™ beneficial bacteria is recommended for use during the summer season – typically from May/June through September/October. The pond bacteria, and the enzymes they produce go to work breaking down pollen, dust, grass clippings, leaves, and other wind blown debris commonly associated with the summer season.HydroClear™ Summer Maintenance™ is also recommended for use in pondless waterfalls to help keep them clean, fresh smelling, and to help prevent algae growth.