Pond Logic® Nature's Defense®
Click to Enlarge
$16.99 - $139.99


This item ships via motor freight and may arrive separate from the rest of your order
This item ships from the manufacturer and may arrive separate from the rest of your order
Live Koi ship from our hatchery and may arrive separate from the rest of your order
Plants ship from our nursery and may arrive separate from the rest of your order
Plants are held in accordance to climate zones. Click for ship dates.
This item ships via ground carrier and will arrive within 4-8 business days
This item carries an additional handling charge of $ per item

  • Details
  • Usage
  • Reviews
  • Promote A Healthy Ecosystem
  • Eliminate Excess Nutrients
  • Seed & Maintain Biological Filters

Use Pond Logic® Nature's Defense® to promote a healthy and thriving ecosystem in your pond resulting in clear water. Nature's Defense® comes in no-mess, easy-to-apply water soluble packets. The natural bacteria in this product instantly activates as it hits the water and multiples every 20-40 minutes to start digesting the dead organics in the pond, such as fish waste, uneaten food, and leaves. Nature's Defense® eliminates excess nutrients such as phosphates and nitrogen. Use Nature's Defense® to both seed and maintain your biological filters, resulting in reduced levels of ammonia and a crystal clear pond.

Pond Logic® Nature's Defense® can also be found in the DefensePAC®.

Usage Information

From dosage rates to product labels, the USAGE tab contains all of the information you need to properly apply your pond care products.

Pond Logic Nature's Defense
6 Packets
Pond Logic Nature's Defense
12 Packets
Pond Logic Nature's Defense
24 Packets
Pond Logic Nature's Defense
96 Packets
Application Packet Packet Packet Packet
Active Temp Above 50°F Above 50°F Above 50°F Above 50°F
Months of Treatment For 1,000 Gallons 3 Months 6 Months 12 Months 48 Months
Shelf Life 5 Years 5 Years 5 Years 5 Years

Dosage Rates

Pond Size (In Gallons)
Initial Dose
Maintenance Dose (Every 2 Weeks)
Up To 1,000 2 Packets 1 Packet
Up to 2,000 3 Packets 2 Packets
Up to 3,000 4 Packets 3 Packets
Up to 4,000 5 Packets 4 Packets
Up To 5,000 6 Packets 5 Packets

How To Apply Nature's Defense®

Do not open packets. Simply toss Nature's Defense® in your pond, filter or skimmer.

When To Apply Nature's Defense®

For best results, apply every 2 weeks when water temperatures are above 50°F.


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


What others are saying

5 out of 5

Customer Rating

"Excellent product "joe Wilson of Columbia, SC

Makes water clear and fish seem to have new energy. Great natural product.

View entire review

5 out of 5

Customer Rating

"Excellent Product"Robert Ward of Williamsburg, VA

I've been using it as directed for 5 weeks and my pond water is so clear I can easily see the rocks on the bottom. Prior to using this I couldn't see anything on the bottom. I haven't noticed any problems with the plants, fish or frogs using this product.

View entire review