Kasco Macrozyme Beneficial Bacteria

  • Product Code: Kasco Macrozyme Beneficial Bacteria
  • Availability: In Stock
  • $15.85

Available Options


Kasco’s Macro-Zyme Beneficial Bacteria is the perfect choice to control and eliminate sludge and foul odors in tanks, ponds, and lakes.  Macro-Zyme contains a high concentration of facultative anaerobic bacteria that will rapidly reproduce and consume organic material in your pond or lake. Easy to use and releases billions of beneficial bacteria & enzymes that work around the clock to clean, neutralize, and purify. Application is simple — just apply Macro-Zyme in water 55°(F) or warmer and let it go to work. SAFE for HUMANS., PLANTS, and ANIMALS.

This cart item is the 8-oz bag, which treats 1/2 acre foot of water. Also you will find the case of 40 8oz bags. (We sell other Macro-Zyme items. Call if you need something else.

How to Calculate Acre Feet

Average depth of pond x size in acres

For example, if your pond is 4-feet deep average and a 1/4 acre in size, you have one acre foot. If your pond is 1 acre in size and 12 feet average depth, you have 12 acre feet. This info is important for calculating need for aeration.

An acre is a little under 44,000 square feet.

So if you have a pond that is about 100' x 100' you have a 1/4 acre pond.

This easy to use product is available in several forms:  as quick-dissolving powder in bulk or in water-soluble bags, as six-ounce pucks, or in 6 lb. blocks. The powder is perfect for treating an entire body of water, like your pond. The pucks are designed for easy spot treatments around docks or swimming areas. Both powder and pucks should be applied every 2-3 weeks when water temps are right. Use blocks for on-going time-release treatment lasting up to a month per block. To maximize the performance of this beneficial bacteria, please consider adding a Kasco aeration or circulation product.  Again, this cart item is for the 8-oz bag, which treats 1/2 acre foot of water. There are so many different sizes available, please call us to order a different item.


Part NumberDescriptionTreatment AreaReapplicationTypical Use
MZ16 pk. of 1 oz. ws bagsUp to 6,000 gal.Every 3 weeksSmall pond / watergarden
MZ1Ccase of 6 x 6 pks. of 1 oz .ws bagsUp to 36,000 gal.Every 3 weeksSmall pond / watergarden
MZ88 oz. ws bag1/2 acre-footEvery 3 weeksSmall to medium ponds
MZ8Ccase of 40 x 8 oz. ws bagsup to 20 acre-feetEvery 3 weeksSmall to medium ponds
MZ2525 lb. bulk bag in pail, no ws bagsup to 25 acre-feetEvery 3 weeksMedium to large ponds
MZ5050 lb.bulk bag in pail, no ws bagsup to 50 acre-feetEvery 3 weeksMedium to large ponds


Part NumberDescriptionTreatment AreaReapplicationTypical Use
MZMP7Muck Pucks; 7 lb. pail with 266 pucksup to 10 ft.2 per puckEvery 3 weeksSpot treatment around docks and swimming


Part NumberDescriptionTreatment AreaReapplicationTypical Use
MZMB5Muck Block; 6 lb. blockUp to 6 acre-feetEvery 30 daysMedium to large ponds & feeder steams

Use when water temps are 55° F or greater
ws = Water Soluble bags