Pond Logic® Clarity Defense®

Pond Clarifer

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Rated 3.7 out of 5, based on 3 reviews
  • Clear Cloudy Pond Water
  • Flocculate Suspended Particles
  • Stimulate Beneficial Bacteria Growth
  • Add Trace Minerals For Fish Health

Use Pond Logic® Clarity Defense® to flocculate tiny particles and sink them to the pond's bottom or to be removed by the filter. Clarity Defense® locks up excess nutrients, such as phosphates, stimulates natural bacteria growth and clears cloudy water. Not only does Clarity Defense® improve pond clarity, it also adds trace minerals while buffering pH to prevent pH swings and promote a healthy fish population and pond health. Results can be seen in as little as 12 hours! Great to use with Nature's Defense® and Muck Defense®.

Tech Specs

Usage Information

Pond Logic Clarity Defense
1 Pound
Pond Logic Clarity Defense
2 Pounds
Pond Logic Clarity Defense
8 Pounds
Application Powder Powder Powder
Active Temp None None None
Months of Treatment For 1,000 Gallons Up To 4 Months Up To 8 Months Up To 32 Months
Shelf Life 5 Years 5 Years 5 Years

Dosage Rates

Pond Size (Gallons)
Initial Dose Clear Water
Initial Dose Murky Water
Maintenance Dose
Up To 1,000 1 Scoop 2 Scoops 1 Scoop
1,001 - 2,000 2 Scoops 4 Scoops 2 Scoops
2,001 - 3,000 3 Scoops 6 Scoops 3 Scoops
3,001 - 4,000 4 Scoops 8 Scoops 4 Scoops

How To Apply Clarity Defense®

Apply scoops directly to the pond water. For larger ponds, it may be diluted in pond water and poured evenly around the water's edge.

When To Apply Clarity Defense®

Water temperature has no effect on Clarity Defense®. Your initial doses should be applied 2-3 times per week for 3 weeks. It should be used weekly (all season long) and may be dosed 2-3x the recommended dose with no adverse effects.


When used in accordance with label directions Pond Logic® Clarity Defense® is completely safe for fish, plants, pets and pond wildlife.


Replacement Parts

Here are the replacement parts for Pond Logic ® Clarity Defense ® .

Weeds Treated

The first step towards effectively treating any pond weed is proper identification. Pond Logic® Clarity Defense® is recommended for use against each of the weeds listed below. Click on your desired weed for more information and alternate control options.

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Wanted to let you know
Jul 17, 2010 | By Krystal
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that this keeps my pond clear, followed the guys directions and poured it after mixing in my skimmer and let the pump spread it out, after it all settles it leaves my pond so clear! I love it!

Clarity Defense---does the job
Aug 2, 2011 | By Jim
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For years I lived with murkiness in warm weather despite following all the usual recommendations (chiefly applications of bacteria and Interpet Pond Balance). I never had any obvious suspended or floating algae, just progressive visibility declines until it becomes hard to see fish on the bottom in shadows. I mixed Clarity Defense with water and spread it around the perimeter. One application fixed it. (However, I am continuing on lower maintenance doses.) The stuff works as advertised---very impressive.

product review
Aug 16, 2011 | By steve
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This had no noticeable effect on my +/-800gal pond.

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