A potent muck remover for ponds, Nature's Defense is perfect for any small freshwater pond, patio fishpond, backyard water garden, pondless water feature, or aquascape, and great for use in aquaponics and hydroponics.
This easy-to-use solution will not harm animals, frogs, goldfish, koi, birds, ducks, turtles, pets, snails, dogs, horses, or other wildlife when used as directed. It's safe for all pond equipment, including filters, aeration systems, skimmers, cleaners, and fountains. It won’t harm your waterfall pump, skimmer, aerator, filter, clarifier, purifier, floating fountain, décor, or other pond accessories.
Do not open the packets to apply. Keep the powder in the water-soluble packet and simply drop it into your pond, filter, or skimmer. For optimal results, apply every two weeks when water temperatures are above 50°F. Consistent treatments will significantly reduce pond cleaning chores and ongoing maintenance.
The Pond Guy products deliver superior pond care, supporting a cleaner, clearer, and more balanced aquatic environment. Nature's Defense pairs perfectly with other natural pond treatments like Muck Defense muck reducer tablets, which also contain beneficial bacteria for ponds that digest organic debris—commonly known as pond scum or sludge. See The Pond Guy for all your pond supplies and discover more ways to solve your pond problems effectively.
FAQs How often should I apply this treatment?
We recommend applying The Pond Guy Nature’s Defense every two weeks when water temperatures are 50°F or above. This product is intended for maintenance treatment and should be applied consistently to keep water clarity. Do I need to open the packets?
No. Just toss the whole packet into your pond. Simple to use with no measuring or mixing. Treatment is in a water-soluble casing material that dissolves in your pond water. Is Nature's Defense safe for my koi?
Yes. Nature's Defense contains naturally occurring beneficial bacteria. Nature's Defense is completely safe for fish, plants, pets, and pond wildlife when used per label directions. Can this be used in a smaller fountain application?
Yes. Nature's Defense can be used in smaller applications such as fountains, patio ponds, and other water features, as it is an all-natural beneficial bacteria product. Can I use Nature's Defense in my large acreage-sized pond?
No. This product is formulated for smaller water garden and koi pond applications (aquascapes measured in gallons, not surface acres). It is also not intended for use in pools, as chlorine will kill the bacteria. Will Nature's Defense kill algae?
No. Nature's Defense is a beneficial bacteria product that reduces nutrients in the pond, but it is not an algaecide and will not effectively kill algae. If you are looking for an algaecide, consider The Pond Guy InstaFix Algae Control. Can I use Nature's Defense at the same time as an algaecide product?
No. We recommend waiting at least 72 hours after your last treatment of algaecide to apply The Pond Guy Nature’s Defense. This ensures that the algaecide does not harm the beneficial bacteria in the packet. 
