Reviews & Questions

Customer Reviews' 4.2/5
based on 6 reviews
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Macrozyme Pond Bacterium
Raymond E Havlin
Mar 5, 2025
It appears that these packages have been sitting around for a good while because the inner dissolving package that you were to throw into the pond had completely deteriorated, and the bacterium was loose in the package . It also appears to not have had any effect whatsoever. Probably because it was old..
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Excellent
Paul Bureau
Sep 13, 2024
This product is great. Meets our expectations!
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Check packaging
Joseph Mareno III
May 16, 2023
Got on time and works as it should , only issue was the dissolveable packet on the inside was dried out and brittle so it crumbled when you open the outer package made it hard to disperse
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Great value/ Prompt service
William Shields
May 22, 2022
Having a 20K gallon koi pond using the products for smaller ponds was prohibitive. Microzyme works great at an affordable price. Been using it for years.
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Microzyme
William Shields
Jul 6, 2020
Works as described. Multiple year user qith great results.
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Pond treatment
Bill Shields
May 11, 2018
Works well
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Macrozyme Pond Bacterium

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$13.25
Buy 1 or more for $13.25 each
Buy 40 or more for $12.50 each
STOCK NUMBER: MZ8

Macrozyme is the perfect choice for the control and elimination of sludge and foul odors in tanks, ponds and lakes. Once introduced, Macrozyme quickly releases billions of friendly and beneficial bacteria and enzymes that work around the clock to clear, neutralize and purify water. Macrozyme utilizes natural bacteria and enzymes to rapidly biodegrade top and bottom sludge while reducing components that contribute to sludge build up in ponds of all sizes. Macrozyme will also reduce nitrates and phosphates. These bacteria will:
  • Reduce odors in 24 hours or less
  • Rapidly remove leaves, fish waste and sludge
  • Clear water and help restore a healthy oxygen level

Treats up to 1/2 Acre feet per bag (162,000 gallons)