Product Technical Bulletin

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Material Safety Data Sheet


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ALKEN CLEAR-FLO® 1005 is a dry, synergistic blend of thirteen gram-positive natural, non-pathogenic strains of BioSafety Level 1, endospore-forming Bacilli and two (2) strains of BioSafety Level 1, gram-negative, vegetative bacteria. CF 1005 combats problems found in sludge at the bottom of ponds, lakes and rivers, particularly sulfides, mercaptans, ammonia, fatty acids, nitrates and other sources of odor and pollution, while greatly increasing the rate of dentrification. ALKEN CLEAR-FLO® 1005 will break the cycle of sludge buildup, fish suffocation, off-flavor, algae crashes and over-growth of weeds. Keeping the pond bottom clean will reduce stress on your valuable crop, allowing them to maintain healthy immune systems and grow strong. When applied within the revised temperature and pH range listed on this product technical bulletin, this revised formula will deliver improved sludge bioremediation and feed conversion rates. Our cold-adapted strains of BioSafety Level 1 Pseudomonas putida are no longer a part of this product, at the request of health authorities in one country. If application water temperature averages below 9° C, you will need to consult us about modification of this formula, if your country permits use of Pseudomonas bacteria.

If ammonia nitrogen is also high, ALKEN CLEAR-FLO® 1100-50x should be used in conjunction with ALKEN CLEAR-FLO® 1005.



 Bacterial count:  4 billion CFU/gram (1.81 trillion per lb.)
 Appearance:  Free flowing, brown powder
 Odor:  Yeast-like
 pH:  Neutral


  • Converts accumulation of excess food, waste and soluble organics, that drop to the bottom of the pond, to carbon dioxide, nitrogen andoxygen gases, water and sulfates.
  • Oxidizes hydrogen sulfide, mercaptans, ammonia and thiocyanate to non-toxic substances.
  • Degrades acetic, butyric, hexanoic, propionic, isovaleric and lactic fatty acids.
  • Breaks down proteins, starches, fats and food-based oils, xylan, cellulose and lecithin.
  • Adds minerals and micro-nutrients that stabilize pH and microbe population growth.
  • Probiotic protection of aquatic inhabitants, improving digestion.
  • Three of the strains will reduce nitrate to nitrous oxide and nitrogen gas, even in the presence of some free oxygen, although anoxic conditions in the sludge layer encourage faster rates of denitrification..
  • Many of the strains are tolerant of 7.5% saline (seawater is around 3%)
  • Sludge treatment with CF 1005 allows faster, healthier startups of aquaculture ponds.
  • Tested and certified negative for Salmonella, Shigella & E.Coli.
  • Safe for fish, crustaceans, wildlife, farm animals and humans, when used as directed.
  • Non-toxic, non-corrosive. Safe to handle and store.
  • Effective at temperatures as low as 48 deg. F (9 deg. C) and as high as 96 F (36 C).
  • Operates in a pH range of 4.5 to 8.5, with the optimum near 7.0


See Aquaculture/Lake/Pond dosage charts for for general application rates (use chart for CF 1003 - 1008). Your Alken-Murray service representative will prescribe both the initial application and the weekly maintenance doses taking into consideration such factors as the size of the particular water body, total weekly inflow and outflow, amount of shade vs. sun, fish and fowl loadings, and levels of pesticides or other contaminants. Be aware that a heavy rainfall may bring significant contamination with its runoff, and a one-time dosage equal to the initial application may be needed to restore control. Mechanical aeration may be needed where natural aeration is deficient.

For application between cycles, keep sludge at the pond bottom moist to at least 70% of saturation during treatment. For every hectare-meter of sludge (measure depth of sludge x area of pond), apply 1.0 kg (2.2 pounds) of treatment the first week, distributed evenly. Apply 0.5 kg (1.1 pounds) per week after that, for two more applications.

For standard application to bottom of filled water body, apply 18 grams the first week (approx. 0.04 pound), per 1000 gallon (3785 liters) water volume, then dose with 9 grams (0.02 pound) per week for three weeks, and then reduce to 4.5 grams (0.01 pound) per week for maintenance. Dosage may be increased to as much as 10 times recommended dose for very fast results, but monitor the water quality to assure that the dissolving sludge does not cause polluted water. If the test results in the water rise, stop treating the sludge and treat the water for 2 weeks with Alken Clear-Flo 1006, then resume treatment with CF 1005, but dose at 5 grams (0.011 pound) each week per 1000 gallon volume.

For optimum bacterial performance, hydrate ALKEN CLEAR-FLO® 1005 before application in the evening. Thoroughly mix each pound of dry product with two gallons of warm water (approx.70 deg. F or 21 deg. C) from the water body to be treated. Allow the mixture to hydrate for two hours, stirring vigorously every half hour. Immediately after stirring the mixture for the last time, pour into the pond in divided doses, to evenly distribute it around the pond. Avoid use of algaecides, herbicides, and antibiotics when using ALKEN CLEAR-FLO® products.


ALKEN CLEAR-FLO® 1005 is packaged in 25 and 50 pound containers. Store in a cool, dry place. Avoid contact with eyes, skin, or open wounds and wash hands with warm, soapy water after handling.



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