Sludge Reducer from Tetra - Formerly AquaZyme - 16oz Bottle - 16439

Sludge Reducer from Tetra - Formerly AquaZyme - 16oz Bottle - 16439
Suggested Retail$25.00
Our Price$16.25You save35%
Usually ships the same business day
Sorry, Out Of Stock

Product Details

Out of Stock - Please see the 40oz Size of Sludge Reducer by Tetra

TetraPond - Sludge Reducer (Formerly AquaZyme™) - Improves Water Clarity - Helps clear bottom of pond.

Full season water clarifier program. Great to use in spring before water is shaded by aquatic plant cover. Contains high concentration of natural, beneficial bacteria and enzymes that consume the organic matter and nutrients, in pond water. Safe for fish and aquatic plants. Use in the spring and summer.


  • Manufacturer's Part # 16439
  • Product size: 16 oz ( 454 g )
  • Easy Measuring
  • Treats up to 16,000 gallons
  • Degrades organic debris
  • Use as Part of Your Maintenance Program
  • Adds beneficial bacteria, that produce enzymes, to pond bottom to degrade organic debris and reduce sludge build up.
  • Helps keep water clear by reducing organic debris
  • By minimizing sludge, water clarity is improved since turbulence caused by swimming fish can agitate sludge and cloud water
  • Particularly useful in ponds with stones at the bottom where netting or vacuuming debris is impractical
  • Contains Beneficial Enzyme Producing Bacteria
  • Not harmful to fish and aquatic life when used as directed!

Product Dosage:

Regular Maintenance:

Dose every 2 weeks. 1 teaspoon (5g) treats 180 US gallons (680L). 1 tablespoon (15g) treats 540 US gallons (2040L)

Pond Startup:

Dose every week for 4 weeks. 2 teaspoons (10g) treats 180 US gallons (680L). 2 tablespoons (30g) treats 540 US gallons (2040L)

End of season shutdown:

Dose once a week for 4 weeks. 1 teaspoon (5g) for every 100 US gallons (380L).

Special Note: Works best in pH range of 6.0-8.5 with 7.0 being ideal. Provide aeration to the pond with fountain, waterfall or air pump. Keeps pumps running 24 hours a day.

How many Gallons do I have in my pond?

A: You can determine how many gallons by measuring length (L), width (W), and average depth (D) in feet (ft) or meters (m) and calculate volume using one of the following formula: Square/Rectangular: L(ft) x W(ft) x D(ft) x 7.5 = Gallons OR Circular/Elliptical: L(ft) x W(ft) x D(ft) x 5.9 = Gallons.

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Estimated Delivery Date

All of our in-stock products usually ship the same or next business day. The table below will show you an estimated* date your order will arrive. See special notes below

Shipping Method Approximate Processing Time Approximate Shipping Time Estimated Delivery Date
Eco-Saver Shipping 1-3 business days if ordered by 12:00 Noon EST 2-10 Business Days
Ground Service Same to Next day if ordered by 1:00 PM EST 2-7 Business Days
3-day Select Same day if ordered by 1:00 PM EST 3 Business Days
2nd Day Ai Same day if ordered by 1:00 PM EST 2 Business Days
Next Day Air Same day if ordered by 1:00 PM EST 1 Business Day
Next Day Air Saver Same day if ordered by 1:00 PM EST 1 Business Day by End of Day
UPS Standard - Canada Within 24 to 72 hours 5-10 Business Days

* Delivery dates are estimates only and can vary due to backorders, order processing delays, payment information, customs clearance, and various shipping delays that may be out of our control. Please refer to the specific product page which will show additional information, as some items may require additional shipping time or ship directly from our suppliers. After we receive your order, an order confirmation email is sent automatically from within our website which will show stock status for the item(s) on your order. Business days are Monday - Friday with Holidays excluded. When your order ships, we add your e-mail address into the UPS software which will send you tracking information, so you can track shipment status online, anytime! Here is a link to our complete shipping information including a UPS transit map: Click Here