Macro-Zyme™ pond bacteria contains a high concentration of facultative anaerobic bacteria that rapidly reproduces and consumes organic muck in your pond. This high concentration of beneficial bacteria will immediately go to work digesting carbons, fats, starches, proteins, and cellulose materials in your pond, cleaning the pond, and improving the smells.

It is the perfect choice for the control and elimination of sludge, and foul odour, in tanks, ponds, and lakes. Once introduced, Macro-Zyme™ quickly releases billions of friendly and beneficial pond bacteria and enzymes that work around the clock to clear, neutralise, and purify water.

Used by professionals since 1991, this concentrated professional grade formula was the first on the market to introduce a 1-step maintenance program that utilises 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. Macro-Zyme™ will also reduce nitrates and phosphates. These pond bacteria will:

  • Reduce odours in 24 hours or less
  • Rapidly remove dead grass, leaves, paper, fish waste, and organic sludge
  • Clear water, and help restore a healthy oxygen level

Pond treatment with Macro-Zyme™ is quick and easy. First, you must determine the pond capacity or water volume. To do this, you will need to know the length, width, and depth of the pond. With this info, you can determine the total cubic meters of water in your pond, and use the proper amount of Macro-Zyme™. Once you have determined the total gallons of your pond, follow the label instructions for proper dosage depending on the Macro-Zyme™ size you have. If there is a UV Sterilizer in your water garden, you will want to turn it off for at least 48 hours after the Macro-Zyme™ application.

Remember, Macro-Zyme™ is a blend of Aerobic Bacteria, and will work more effectively with the use of an aeration device like the Aerating Fountains or Aerators.


  • Removes pond scum and odours 
  • Removes nutrients and sediments without chemicals.
  • Safe and Non Toxic
  • Clears water, and helps restore a healthy oxygen level

Macrozyme Powder

Macro-Zyme™ is available in easy-to-use water-soluble bags or bulk boxes. Just toss the water soluble bags or apply the bulk product at the recommended rates. Macro-Zyme™ has a shelf life of 2 years! Macro-Zyme™ contains no dangerous chemicals or harmful bacteria, and is safe for wildlife. These bacteria will flourish with the addition of aeration. Macro-Zyme™ is available in the following sizes/options with corresponding area treated.

Macro-Zyme™ Muck Puck

Macro-Zyme™ Muck Pucks are ideal spot treatments around docks and swimming areas to address muck accumulation and water quality issues. The easy-to-use tablets are perfect for the homeowner to use in problem areas. The completely safe, non-toxic formula of beneficial bacteria will aggressively decompose the build-up of organic matter in a way that is not harmful to fish, wildlife, pets, or people.

The pucks are approximately the diameter of a two pence coin, 25mm, and are about 1cm tall. Each tablet will treat up to 0.9 square meters of bottom area. The pulverised barley binder adds micro-nutrients to kick-start the bacteria and decomposition processes. Magnesium is also added as a bacteria stimulator.

Muck Pucks are available in a user-friendly, pull top pail. Each pail weighs 3kg, and contains approximately 266 pucks. Reapplication is suggested every 2-3 weeks, when water temps are above 13°C.

Macro-Zyme™ Time release Muck Block

Macro-Zyme™ Time Release Muck Block is perfect for applications and locations that you just can’t get to every 2 weeks for reapplication.

Each Muck Block is packed with high counts of bacteria CFU’s, which will gradually release into the water system to aggressively attack and decompose muck and organic matter. When placed in areas of water current or in feeder streams, the water movement will carry the muck-busting bacteria throughout the pond, making applications and treatments a breeze.

Each 2.25kg block is formulated to slowly release bacteria dosages that will treat up to 2,500 cubic meters of water. It is much more effective when used with water movement, as the current will help dissolve the block, and carry the bacteria throughout the pond. The CFU count is as good, or better, than other bacteria products, which allows it to pack a strong punch in a small package.

Each Macro-Zyme™ Time Release Muck Block is sold individually in a watertight bag, packaged in a user-friendly box. Reapplication is only needed every 30 days, when water temps are above 13°C!

More info? Send us your request for the documentation and product specifications by mail or through our contact form.