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Few experiences can compare to the pleasure and serenity that come from relaxing beside a beautiful garden pond. Whether keeping a fish pond or a water garden, API will help guide you to keep your water clean and clear, and your fish and plants vibrant and healthy. API makes it easy to maintain a beautiful, peaceful pond all year long.

API Pond AlgaeFix

Effectively controls many types of green or green water algae, string or hair algae and blanket weed in ponds that contain live plants. Keeps ornamental ponds and water gardens clean & clear. Can be used in ponds with plants!

API Pond Accu-Clear

Maintains crystal-clear pond water. Quickly clears cloudy pond water. Helps filters function more efficiently. Works by causing tiny suspended cloud particles in pond water to clump together. The clusters quickly fall to the bottom.

API Pond Stress Coat

Stress Coat completely neutralizes and removes chlorine, chloramine & the ammonia associated with chloramine, which is added to tap water. Protects fish and assists in healing of fish wounds.

API Pond Ecofix Sludge Destroyer

Reduces pond maintenance by breaking down fish waste and dead algae, as well as working to increase the concentration of dissolved oxygen in pond water by eliminating sludge build-up. The result is cleaner, clearer pond water and a healthier ecosystem for pond fish.

API Pond Microbial Algae Clean

An all-natural alternative approach to algae control as the first bacterial algaecide registered with the EPA. This product contains patented bacteria to control green water algae in ponds with live fish and plants, and helps establish and maintain a clean, odor-free and algae-free pond.

API Pond Simply Clear

A fast acting bacterial based pond clarifier that quickly clears murky, cloudy water and keeps it clean and clear through natural bacterial action. This triple action formula acts fast - clears pond water and breaks down sludge and offers a long term solution to un-clear pond water.

API Pond Chlorine & Heavy Metal Neutralizer

Instantly neutralizes chlorine, copper, lead and zinc, as well as other heavy metals found in tap and well water, all of which may be toxic to fish and plants.

API Pond Melafix

An all-natural, antibacterial remedy for koi and goldfish diseases, including eye cloud, mouth fungus, fin & tail rot, damaged fins, ulcers, and open wounds.

API Pond Pimafix

An all-natural formula that rapidly treats fungal infections on the body and fins of your pond fish, in addition to treating internal and external bacterial infections.

API Pond Pond-Zyme Sludge Destroyer

Through enzymatic action, Pond-Zyme Sludge Destroyer reduces pond maintenance and keeps pond water clean and clear. Pond-Zyme Sludge Destroyer is a 100% natural product, & safe for all pond fish, plants, and wildlife

API Pond Pond & Waterfall Cleaner

API Pond & Waterfall Cleaner uses the power of active oxygen to deep-clean pond surfaces, waterfalls, fountains, and bird baths on contact. It is safe for all fish and aquatic plants, and should be used as needed to maintain a clean, clear pond or outdoor water feature.

API Pond Salt

Improves gill function, protects against nitrite toxicity & reduces stress by helping to maintain a natural balance of electrolytes in the body fluids of pond fish.

API Pond pH Up & pH Down

pH is the measure of acidity or alkalinity of water, and can fluctuate from day to day. Pond water should be tested for pH levels regularly. When tests show a change in pH, use pH Up or pH Down to slowly adjust the pH to a desired level.

API Pond Ammo Lock

API Pond Ammo Lock detoxifies poisonous ammonia, which is continually produced in your pond by waste, to a safe form for fish. This product eliminates ammonia stress, and promotes healthy gills and a safe pond environment for your pond fish.

API Aquarium Salt

Made from evaporated sea salt and is a must-have for your aquarium! Promotes fish health by improving gill function, making it easier for fish to breathe. It also provides essential electrolytes that fish need to reach peak coloration and vitality.

API Pond Aqua Essential Water Conditioner

A highly concentrated all-in-one water conditioner that instantly makes tap water safe for fish by removing chlorine, chloramine and detoxifies heavy metals commonly found in tap water. It also removes toxic ammonia, nitrate and nitrite levels in your pond.

API Freshwater Master Test Kit - Aquarium
SKU: 010341
$50.48 $35.98 (Save 29%)
89 Points | In Stock
API Carbonate Hardness Test Kit
SKU: 010594
$12.78 $8.98 (Save 30%)
22 Points | In Stock
API Pond Master Liquid Test Kit
SKU: 13164
$48.98 $34.98 (Save 29%)
87 Points | In Stock
API Freshwater Aquarium pH Test Kit
SKU: 13165
$11.28 $7.98 (Save 29%)
19 Points | In Stock
API Pond General & Carbonate Hardness Test Kit
SKU: 13166
$16.78 $11.98 (Save 29%)
30 Points | In Stock
API Pond KH Carbonate Hardness Test Kit
SKU: 13167
$12.78 $8.98 (Save 30%)
22 Points | In Stock
API Pond 5 in 1 Pond Test Strips, 25 count
SKU: 06164
$20.98 $14.98 (Save 29%)
37 Points | In Stock
API Pond Nitrite Test Kit, 180 tests
SKU: 00026
$16.78 $11.98 (Save 29%)
30 Points | In Stock
API PondCare Wide Range pH Test Kit
SKU: 10028
$13.48 $9.48 (Save 30%)
24 Points | In Stock
API Phosphate Test Kit
SKU: 63L
$20.98 $14.98 (Save 29%)
37 Points | In Stock
API Pond Nitrate Test Kit
SKU: 01800
$19.78 $13.98 (Save 29%)
35 Points | In Stock
API Pond Copper Test Kit, 90 tests
SKU: 00065
$17.48 $12.48 (Save 29%)
31 Points | In Stock
API Ammonia Liquid Test Kit, 130 tests
SKU: 08600
$21.78 $15.48 (Save 29%)
39 Points | In Stock
API Ammonia Test Strips, 25 tests
SKU: 08601
$23.98 $16.98 (Save 29%)
42 Points | In Stock
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