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Below is a sampling of aquatic pollution problems we have solved in the past. We are constantly pushing the envelope of technology, creating new formulas and new systems to solve a wide variety of pollution problems. Do not assume that we cannot solve a situation just because it is not on this list, we specialize in custom solutions. When the other companies give on Claudia, Valerie & Ken. 


Aquarium & General Aquaculture

1) Clear-Flo 1200 with photos at Marineland, Florida (Marineland1)

  • Letter dated 9/92 discusses success with Clear-Flo 1000 & 1200 in a koi pond and fresh fish tanks.
  • Letter dated 4/93 referencing drain and waste treatment applications
 2) Clear-Flo 1200 with photos at Florida Aquaculture Convention hotel in 1992 (Orlando1)
3) Dr. Robert Valenti (Valenti.CXI) results of testing of Clear-Flo 1200 in 1989 in 25,000 gallon seawater fish tanks is demonstrated with before and after photos which show decrease of excess nutrients and improved water clarity with reduced suspended solids.
 4) When Alken Clear-Flo® 1100 was used for transporting Mahi-Mahi eggs from Florida to Monaco, survival rates improved from 25% to 95%.
 5) Toxicity testing of Alken Clear-Flo® 1006, revealed no toxicity to Pimephales promelas at 10 to 15 times our shock dosage (5 times normal first dose). Request copy of this report from Valerie.

Shrimp Probiotics

1) Alken Clear-Flo 1000 & Alken Clear-Flo 1200 reduce suspended organics, algae, and Cyanobacteria in shrimp farm with photos (Shrimpfarm 1)
2) Photos of Latin American growing ponds with Clear-Flo 1200, including dosage rate used for results obtained. (Shrimpfarm 2a)
3) Photos of Latin American reservoir using Clear-Flo 1200, including dosage used by client. (Shrimpfarm 3a) 

4) "Use of Beneficial Bacteria in the Larval Rearing of Shrimp Penaeus schmitti", by Elvira Alfonso, Elpidio Beltrame, Edemar R. Andreatta, Alitiene Lemos y Jair Quaresma, sponsored by the Centro de Investigaciones Marinas, Universidad de La Habana, Cuba and Laboratorio de Camaroes Marinhos, Centro de Ciencias Agraras, Universidade Federal de Santa Catarina, Brasil in 1994.

English Abstract: Recently some live organisms have appeared in the market, designed as waste degraders for Aquaculture. The effect of two products (Alken Clear-Flo 1000 and Alken Clear-Flo 1200) on the larval rearing of the white shrimp Pennaeus schmitti was tested. This species is commercially cultured in Brazil and Cuba. Dosages were evaluated, also the oll of the products on the water quality and the possible control of the gut epithelium scaling syndrome of the animals, known as "Bolitas" were studied. In order to analyze the results , the following have been considered: survival, metamorphosis rate, larval quality and size of the postlarvae. It was concluded that the tested products can be used even since Protozoea l. It was possible to reduce the daily water exchange from 100% to 30% in the larval rearing process, besides avoiding the presence of the gut epithelium scaling syndrome from the larvae. The products can optimize the production of P. schmitti postlarvea.

We wish to express our appreciation to distributor, Andre Nogueira , of PTA Tecnologia, for sharing this research paper with us.

5) "The Effect of Alken Clear-Flo 1200 used in Grow-Out Ponds of Penaeus japonicus" by Li Hui-Rong, YuYong, Ji Wei-Shang and Xu Huai-Shu, of the College of Marine Life Sciences, Ocean University of Qingdao, China 266003, in 1999.

Synopsis of results: This study demonstrated reduced ammonia levels over controls and increased size, in overall length, width, and weight of the shrimp culture grown when officially expired product was applied (age 11 months at start of test). The liquid CF 1200 was NOT supplemented with its usual CF 1001 dry supplement, and did not show a scientifically significant difference in the COD levels versus the control ponds, although both maintained low levels. Click HERE for full-length study with graphs and charts.

Trout Water Cleanup

 Ammonia reduced, sludge degraded by 10 cm/week, and mortality rate reduced by 66% in French trout raceways with Clear-Flo 1200. With photos. (fishfarm1)

Eels Water Treatment

 1) Chinese eel farm used Clear-Flo 1200 to decreased water changes, off-flavor and hydrogen sulfide formation - with photos (eelfarm1)
 2) Photos demonstrate the water quality when Clear-Flo 1200 is used for eel growing (eelfarm4)
 3) Since eels absorb 60% of their oxygen through their skins, they are exceptionally sensitive to polluted water. Clear-Flo 1001, 1400 & 1200 decreased the death rate from 50 to 100 eels a day to 5 to 7 eels a day (improved by 93%). Photos illustrate Korean eel farmers at work. (eelfarm5)

Koi Water Care

 1) Prevention of "new tank syndrome" in Korean Koi farms in with the nitrifiers and waste degraders in Clear-Flo 1100, 1200, & 1400 are illustrated with photos from 1993 (Koifarm1)
 2) A biofilter, seeded with Clear-Flo 1200 is illustrated in a photo, along with "before" and "after" water samples. (Koifarm2)

Alligator Pond Treatment

Use of Clear-Flo 1200, 1400 & 1100 on an alligator farm is discussed along with photos. (alligator1)

Zoo Cleanup

After 22 days of treatment with Clear-Flo 1200 in their alligator and animal ponds and aquariums, a Mexican zoo experienced an 84% reduction of BOD and COD, suspended solids decreased by 93%, TKN reduced by over 50%, oxygen levels increased from 0.1 ppm to 2.0 ppm, water clarity was improved by 26%, pH was increased from 6.8 to 7.5, and sediment was decreased from 2.0 to 0!!Click here for Spanish language version of study.

Frog Care

Photos demonstrate the results of frogs grown in Brazil in 1994 with the aid of Clear-Flo 1200 to maintain clean water. Dosages used by the client are listed. (FrogFarm1)

River Remediation & Sludge Removal

 1) The scientific report of the 1992-93 remediation of the Moulin Vert Canal using Clear-Flo 1200 for 3 months. (Arnaud.CXI) This report details the application methods, the monitored sludge reduction, and improved water quality. Ammonia was reduced from 0.02 ppm to 00.0 ppm, COD was decreased by 84%, BOD was decreased by 74%. Toxicity tests were performed and proved that there was no detectable toxicity during the treatment. 1500 cubic meters of sludge was degraded during the 3 months. Bioseeding with Clear-Flo 1200 restored the canal's capacity for self-purification as it continues to mineralize sludge, several years after treatment was stopped. Diagrams and photos illustrate this study.
 2) 1993 cleanup of a stretch of the Kunming River in China with Clear-Flo 7018, 1200 & 7000 is demonstrated with photos. The anoxic water was so heavily laden with suspended organic waste from fertilizers, animal droppings, fish-farming by-products, septic tank seepage, industrial wastewater and direct disposal of raw garbage that the eutrophic river emitted an unbearable stench. Ammonia and hydrogen sulfide were decreased, sludge was broken up, and as a byproduct of hydrogen sulfide oxidation, free oxygen began to increase. (ChinaRiver1)
 3) The remediation of the River Sorgue in France in 1993 with Clear-Flo 1200 is illustrated with photos and a newspaper article. BOD and COD were decreased, algal blooms disappeared, and the fish returned within 2 months. A picture of this river is on our HOME page.
 4) A Taiwan shrimp farm pond bottom conditioning with Clear-Flo 1200, in 1992, is illustrated with photographs. When the 2 months normally allowed for soil remediation between cycles is decreased, the total annual shrimp production is increased. (Shrimpfarm4)
 5) Before and After photos illustrate how use of Clear-Flo 1000 & 1200 removed the sulphurous bacteria from the sludge in Eelfarm pond bottom in Shinto, China in 1993. (Eelfarm3)
 6) "Sludge Removal" uses and photos to illustrate the technique of shrimp pond bottom remediation. (Sludge_Removal.CXI)

Bioremediation of General Ponds & Lakes

 1) This synopsis of an article written in the Va. Lake Association in 1993, describes the successful treatment of a 7 acre fresh water lake in Virginia Beach, VA with Clear-Flo 1000. (Sylvanlk.897)
2) The remediation of 3 lakes in sequence, at Boxwood Farm, was accomplished with treatments of Clear-Flo 1200, applied to the top lake only, creating visible changes in 2 weeks. Ammonia decreased from 2.5 mg/l to 0.4 mg/l and photos show water so clear it could be mistaken for bottled drinking water! (Boxwood1)
3) Story of the remediation of Lake Gaskin, surrounded by a commercial development, using Clear-Flo 1000 & 1100 to decreasee ammonia and odors. Photo illustrates the difference in clarity between water samples taken before and after treatment (illustrates how well newsprint is read through the treated water) and shows the difference in water clarity in the actual lake. (LakeGaskin1)
4) The story in the "Clean Water/Lake Management" Alken-Murray three-fold brochure gives a synopsis of the treatment of a large lake, a large pond and "turtle pond" in Central Park, New York in the summer of 1992. A longer version of the study gives full details of treatment applications (lower doses now because of increased product concentration and improved balance) with Clear-Flo 1200, 1000, and 1001. The "Lake" showed Secchi disk reading improved by 78%, suspended solids decreased by 77%, and BOD decreased by 60%. "Turtle Pond" Secchi disk readings were improved by 78%, suspended solids decreased by 70%, and BOD decreased by 72%. The "Pond" Secchi disk readings improved by 37%, suspended solids decreased by 62%, BOD decreased by 52%.
5) Filamentous "blue-green algae" aka Cyanobacteria discouraged by Clear-Flo 1200 with Supplement C in 1997 case study from lakes belonging to the City of Gaithersburg, Maryland. Account handled by Alken-Murray Distributor, Wildlife Habitats.

6) In 1991, CF 1000 and 1200 were used to restore clean water to the 12 acre lake at Merry Oak Farm in Warrenton, VA, home to crappy, bass, swans, Canadian geese and other migratory fowl. Farm manager, Richard Mayberry, said " six weeks, we cleaned up our lake completely with Alken Clear-Flo. We've got absolutely no algae! Riders can water their horses here in safety because we don't use dangerous chemicals in the water." Below is a picture of the appearance of the water, before and after.

picture illustrates the change from untreated water to treated water in laboratory flasks
 7) A variety of Alken Clear-Flo formulas, pH balancing, ultraviolet inhibitor, design changes and aeration replacement brought control to Belvedere Lake, a former retention basin, now managed by L.A. County Public Works. Distributor DeAna Vitela, of AquaBio Environmental Technologies, surveyed the lake, took down a complete history, and examined water test results. Factors contributing to problems - Zeolite on the bottom of the pond, not in a filter, which bound ammonia temporarily, until saturated, and then leached the ammonia back into the lake. The Zeolite also lowered the pH to 4.5 , so 8 tons of aluminum sulfate was added by dump truck, in uneven lumps, around the bottom, to raise the pH. With no shade, poor circulation, and high nutrients from the migratory birds and Bass, Trout and Catfish stocked in the lake, it was soon covered in algae. Copper sulfate failed to solve the problem, and various other quick remedies also failed. Today this lake is clean and clear, with healthy fish and birds.

Country Club Pond Bioremediation

1) The story of an American golf club's experience with Clear-Flo 7000 and 7110 in 1991. Odors were reduced in 10 days, turbidity decreased by 65% within a month. After 2 months of treatment, turbidity was reduced by 95%, algae overblooms had been avoided, and there were no unpleasant odors. (Golfclub)
2) An Oklahoma country club used Clear-Flo 1200 and 7118 (OklahomaCC.CXI) to clear up murky water in 1994, illustrated with photos.
3) A Midwestern golf club used Clear-Flo 1200 & 1001 to clean the water of pollutants that were so severe that a mat of algae so thick it looked like you could walk on it was supported.
4) In 1998, Guadalajara Country Club used Clear-Flo 7000 to discourage formation of most surface algae, but were unhappy with the green color that persisted in the water. After consulting with Claudia Velasco, VP Management of Alken-Murray, the treatment was altered. One small dose of polymer was added to a small dose of Clear-Flo 1001 to instantly clear the water. Follow up treatment with Clear-Flo 1200 with its Clear-Flo 1001 supplement has maintained clean water for this pond. BOD decreased by 97%. COD decreased by 85%. SST decreased by 98%, and phosphates decreased by 69%.Click here for Spanish version of study.

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