API Pond Algaefix Algae Control Solution
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API Pond Algaefix is a powerful water treatment that helps keep algae growth under control for your underwater sidekicks. It's specially designed for areas where the water is contained without any outflow like synthetically lined ponds, water gardens and fountains. This fast-acting algicide is effective for many types of algae including green or green water algae, string or hair algae and blanketweed in ornamental ponds. So, help keep your water clean and clear for your favorite finned friends with API's solutions.
Key Benefits- Effectively controls green water algae, string or hair algae and blanketweed in ornamental ponds.
- Helps keep ponds, water gardens and ponds clean and clear.
- Algaecide controls existing algae and helps resolve additional algae blooms.
- This algae solution is safe for live plants and pond fish.
- Do not use with freshwater crustaceans, including shrimp, crabs and lobsters.
For synthetically lined pond and fountain use only, where all water is contained without any outflow. Before using, make certain that the pond has vigorous aeration, i.e. a fountain or aeration device to avoid fish loss due to low oxygen levels. When algae is controlled and removed by the filter or settles to the bottom of the pond, the oxygen level may drop to harmful levels if adequate aeration is not provided. In warm weather, pond water carries much less oxygen. Therefore, when using during warm weather and high water temperatures, vigorous, 24 hour aeration is required for the duration of the treatment. Do not shut off pond pumps and aeration devices at night. Caution: Do not use with freshwater crustaceans, including: shrimp, crabs, and lobsters.
HAZARDS TO HUMANS & ANIMALS: Harmful if swallowed or absorbed through the skin. Avoid contact with skin, eyes or clothing. Wash thoroughly with soap and water after handling.
For synthetically lined pond and fountain use only, where all water is contained without any outflow. Before using, make certain that the pond has vigorous aeration, i.e. a fountain or aeration device to avoid fish loss due to low oxygen levels. When algae is controlled and removed by the filter or settles to the bottom of the pond, the oxygen level may drop to harmful levels if adequate aeration is not provided. In warm weather, pond water carries much less oxygen. Therefore, when using during warm weather and high water temperatures, vigorous, 24 hour aeration is required for the duration of the treatment. Do not shut off pond pumps and aeration devices at night. Caution: Do not use with freshwater crustaceans, including: shrimp, crabs, and lobsters. Store in a cool, dry place.
Special Note
1-gallon bottle treats up to 38400 gallons.
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Item Number104356
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Aquarium TypePond
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Fish TypeKoi & Pond Fish
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Product FormLiquid
To ensure accurate dosing, determine pond volume before use. Add 1 teaspoon for each 50 US gallons of pond/fountain water or 1/4 cup for each 600 gallons of pond or fountain water. Thoroughly mix into pond water by adding near the pump outflow, waterfall, or aeration device. It can be mixed in a bucket of pond/fountain water and dispersed evenly around the pond. Repeat dose every 3 days until algae is controlled. Be prepared to siphon out dead filamentous algae. Once algae growth is under control, add one dose per week. Weekly treatments will control algal growth and reduce pond maintenance.
Should API ALGAEFIX and ECOFIX be used at the same time, or should sludge remover be added after all the API ALGAEFIX treatments are completed?
It is best to use API ALGAEFIX on its own until algae is under control.
How much API ALGAEFIX is needed per gallon?
To ensure accurate dosing of API ALGAEFIX, determine pond volume before use. Add 1 teaspoon for each 50 U.S. gallons of pond/fountain water, or ¼ cup for each 600 gallons. Thoroughly mix into pond water by adding near the pump outflow, waterfall, or aeration device. API POND ALGAEFIX may be mixed in a bucket of the pond/fountain water and dispersed evenly around the pond. Repeat dose every 3 days until algae is controlled. Be prepared to siphon out dead algae. Once algae growth has subsided, add one dose of API POND ALGAEFIX per week, as weekly treatments will control algal growth and reduce pond maintenance.
Can API® ALGAEFIX be used in concrete fountains?
API ALGAEFIX is designed for use in synthetic-lined ponds and fountains only.
Can API ALGAEFIX be used around aquatic turtles?
API ALGAEFIX can be used in a turtle habitat. Do not use in aquariums that house crustaceans such as shrimp, crabs, or lobsters.
Is API ALGAEFIX OK to use with a Plecostomus and a Catfish in the tank?
Your fish can remain in the aquarium when you treat using API ALGAEFIX. Do not use with crustaceans.
My aquarium has been affected by a major algae bloom. Do you carry a product that kills algae, but does not kill snails?
We’d recommend API ALGAEFIX MARINE aquarium algaecide, which will not harm marine fish, corals, or invertebrates (snails).
Can this API ALGAEFIX be used with aquarium plants?
API ALGAEFIX is safe for use with aquarium plants.
Can API ALGAEFIX be used in freshwater tanks?
Yes, API ALGAEFIX may be used in freshwater aquariums.
Solutions for a Healthier Pond
If you want your pond to thrive, you can trust API to deliver everything you need—not just to get started, but to keep your fish healthy and active year-round. With reliable water test kits, fish medications and water conditioners, they make it much easier to maintain your fish pond so you can enjoy the tranquil ambiance it brings to your backyard landscape.
First-Rate Water Treatments
Maintaining the perfect pond in your outdoor oasis is a much easier task with API's water conditioners and algaecides. They've taken out the guesswork with proven treatments that keep everything in perfect balance. Pond Stress Coat protects your beautiful Koi and Goldfish, while Pond Algaefix helps control algae growth. With the help of Pond ACCU-Clear and Chlorine & Heavy Metal Neutralizer, the water will stay clear and safe for your fish.
Keeping the Balance
Regular water testing will keep your pond serene and picturesque, with fish that are active and lively. The Pond Master Test Kit measures the most important levels, including pH, ammonia, nitrite and phosphates. It's good for routine pond care and for diagnosing and solving any water quality issues. For fast and easy testing without having to use a separate test vial, try the 5-in-1 Pond Test Strips that come with precise color-matching charts.
Problem-Solving Medications
The fish in your pond can get sick, too, and if they do, you'll want to be ready to fix the problem as soon as you can. Pond Melafix is an all-natural, fast-acting remedy that works rapidly to treat bacterial infections, and it's safe for snails, plants and other pond dwellers. To keep your fish swimming strong, add Pond Salt to improve gill function, replenish electrolytes and reduce stress.
About API
Through extensive and continuous research and development, API created quality products for all levels of fishkeeping. As people who are passionate about fish care, they understand the rewards of keeping up a successful pond or aquarium. With easy-to-read guides and premium treatments, foods, filters and testing equipment, API helps aquarists establish and maintain an environment where fish can flourish.
Customer Reviews
90% Recommend
90% of reviewersrecommend this product
You've Already Reviewed This Item
88 Reviews
Showing 1-10 of 88 Reviews
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Very Effective
By Tubwater on Jul 30, 2021
I bought a house with a 3000 gal koi pond/fountain not long ago. The pond is equipped with 2 stages of filtration. The previous owner fought murky green water for years with limited success. The very large, brightly colored Koi were barely visible. I started looking for an algaecide and settled on API Algae Fix. Within a few weeks the pond was crystal clear and remains so with regular treatments. I read several comments about the danger to fish. I have several large, valuable Koi so I was very careful to follow instruction about dosing. I measured the pond carefully to get an accurate water volume including the volume in the filtration and circulating system to determine the proper dosing I bought a house with a 3000 gal koi pond/fountain not long ago. The pond is equipped with 2 stages of filtration. The previous owner fought murky green water for years with limited success. The very large, brightly colored Koi were barely visible. I started looking for an algaecide and settled on API Algae Fix. Within a few weeks the pond was crystal clear and remains so with regular treatments. I read several comments about the danger to fish. I have several large, valuable Koi so I was very careful to follow instruction about dosing. I measured the pond carefully to get an accurate water volume including the volume in the filtration and circulating system to determine the proper dosing. My pond is also equipped with a secondary aeration system which ensures adequate O2 saturation. This product is very effective and safe for fish but the buyer should follow the directions and warnings carefully. I am very satisfied with the product. … more
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Horrible packaging
By Linda on Aug 22, 2021
Ordered this along with 5 litter pan deodorizer sprays. They packed them all together and I’m assuming because the algaecide was a gallon and the cat spray was small it caused the algaecide to leak along with the cat sprays. What a mess. I called and questioned why they would pack them together and she said she would ship out a replacement but packed in separate boxes. NOT. They all came together again and this one leaked. Ridiculous
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Outstanding purchase
By cdavis5534 on Jul 11, 2021
I was amazed at the purchase I made for some very expensive pond algae preventer. Algaefix is the best product I have found to prevent algae growth in our pond. We have a 10,000 gallon pond so we go thru a lot of this stuff. When I found it online at Chewy the price was not to be believed! I saved a bundle and they shipped it in a day! I will always check Chewy's prices now before I purchase anything for my pond!!!
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Algaefix works!
By Ellen on Sep 1, 2021
We have a new small pond and waterfall. It developed a bit of algae since we don't have any fish in it. The Algaefix worked after 2 doses. Very happy with the product.
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Algae mostly gone
By Anna on Aug 6, 2021
After more than a week of treatment every third day the stringy algae almost Gone. There is still a little on bottom so another treatment last night. Tough algae to get rid of.
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works great
By Algeafix on Aug 28, 2021
I have tried a couple other treatments for my fish pond and without good results. This stuff works great. Love it
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Nothing at All
By Rosa on Jul 16, 2021
It literally did nothing. I mean absolutely nothing, not even when double dosed and give more time the directions state to work. Kind of feel it made it worse.
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Didn’t do the job
By Katiej on Jun 11, 2021
I’ve been applying this to my pond as directed for a few weeks now and have not noticed any difference in algae growth. The only reason I gave two stars is because it didn’t kill my koi fish.
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Pond algae control
By Loui on Jul 23, 2021
I am very satisfied with this product, it really works, in about a week my pond was clear from the green algae.
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I order this stuff every year
By Cheryl on Jun 14, 2021
Another great product from Chewy. Super fast shipping and one of the best customer services. Been ordering for years and never had a problem.
