Genuine Kasco
Kasco Macro-Zyme 6 lb time-release Muck Block
Kasco Macro-Zyme beneficial bacteria water-soluble bags
Kasco Macro-Zyme powder formula
Kasco Macro-Zyme water-soluble bag held in hand at pond edge
Kasco · Water Treatments

Kasco Pond Probiotics Macro-Zyme Beneficial Bacteria

Model # MZ8
$14.00 USD · ships across the U.S.
Size 8 oz Water-Soluble Bag
Sold as part of a kit

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This part ships in a Fountain Depot service kit. Call or text 1-855-752-5795 and we will put the right kit together for your unit.

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Small parts are sold in kits that include the matching hardware and service parts.

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  • Certified Kasco repair centerFactory-trained bench techs
  • Ships across the U.S.Priced in U.S. dollars
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Overview

Kasco Pond Probiotics Macro-Zyme Beneficial Bacteria is a safe, non-chemical approach to water quality management, chosen by pond professionals since 1991. Its highly concentrated blend of naturally occurring bacteria and enzymes quickly breaks down sludge, muck, fish waste, and odours to produce a healthy, balanced pond ecosystem.

Key Specifications

  • Formats: quick-dissolving 8 oz water-soluble bags (treats 1/2 acre-ft each, reapply every 3 weeks), case of 40 bags (up to 20 acre-ft), 25 lb bulk pail (up to 25 acre-ft), and time-release 6 lb Muck Block (up to 6 acre-ft, reapply every 30 days)
  • Safety: non-toxic to humans, fish, wildlife, and livestock; safe for irrigation ponds; no permit required
  • Application: simply apply in water 55°F (13°C) or warmer and let the bacteria go to work
  • What it treats: eliminates fish waste, digests organic compounds, and removes decaying grass and leaves
  • Shelf life: at least 2 years

Which format is right for your pond?

Use 8 oz bags for small to medium ponds and regular dosing through the season; choose the Muck Block for medium to large ponds and feeder streams needing monthly treatment; and pick the case or 25 lb bulk pail for large ponds or season-long programs. For spot treatment around docks and swim areas, see our Macro-Zyme Muck Pucks. Email Info@fountaindepot.com with your pond size for a dosing recommendation backed by 50+ years of pond service experience.

Make it work harder

All Macro-Zyme formats become significantly more effective when combined with aeration — pair with a Kasco surface aerator or diffused aeration system for best results.

Shipping & Returns

Ships across the U.S. from stock — delivery typically takes 3 to 5 business days depending on province. Contact us to arrange returns of unopened product within the applicable return period.