65 reviews for Algae Repellent Agent

1. Donovan FellowsVerified Purchase

   Rated 5 out of 5

   My pond is about 2000 gallons and has a stream with waterfall leading to it about 25 feet back. There was string algae growing from the waterfalls and...More

   My pond is about 2000 gallons and has a stream with waterfall leading to it about 25 feet back. There was string algae growing from the waterfalls and along the stream sticking to rocks and in 2 of the smaller ponds along the way and ALL over my big pond! It grew and multiplied like a monster everyday for 2 weeks. I finally realized that me pulling it out would not get rid of it, and bought Algaefix after reading all the reviews. My garden and ponds were going to be in the town annual Pond Tour the next day and I was so scared to use anything for fear it would kill my waterlilies. But the algae was getting so bad that I had to try... the night before the tour! Well, long story short ~ it worked like a miracle! I did add extra aeration like the directions suggestion and I could see why. The chemicals cloud up and the water gets thick in some areas but the next day it was back to normal with most of the algae gone. By the second day it was totally gone. I was totally amazed because, seriously everything was covered in the stuff and now I can't find one strand of it!
   Sienna LaingVerified Purchase

   Rated 5 out of 5

   This stuff is amazing. We tried for 4 years to get our Koi pond under control. The key steps we use are: deep clean each spring, (empty, spray off sid...More

   This stuff is amazing. We tried for 4 years to get our Koi pond under control. The key steps we use are: deep clean each spring, (empty, spray off sides and rocks, do not remove fish or plants) clean all filters and water falls, refill, add pond salt, ammonia inhibitor, chlorine stop, and mineral clay. Let the pond circulate for 2-4 weeks to create its natural beneficial bacteria colonies. The pond will likely be cloudy during this time but should clear up. The algae blooms when the sun and heat kick in for the season. When that happens we use Alagefix per the instructions and add MuckAway tabs. The algae will begin to loosen from the side and sink to the bottom which the filter will suck up. Be sure to rinse filters every 1-2 days until pond clears (just rinse not completely clean, because you also have beneficial bacteria in your filter system) You then keep on the dosing schedule in the instructions and should be clean and clear for the rest of the summer. There is no “quick fix” when it comes to ponds especially with plants and fish. There will always be a need for monitoring and tweaking. Sometimes we will do a 15-25% water change and add fresh water. But the main key is do not do a complete water change because then your pond will need to cycle again from ground zero and that can take 2-4 weeks. I don’t recommend using this product with scaleless fish, but general Koi and Goldfish do fine. We have a fountain spitter and water fall that provide constant aeration. This product has never affected any of my pond plants.
   Andrea FlynnVerified Purchase

   Rated 5 out of 5

   I purchased fish from a pet store. The day after I added them to my 3,000 gallon water garden, the pond turned green. This product cleared up the mess...More

   I purchased fish from a pet store. The day after I added them to my 3,000 gallon water garden, the pond turned green. This product cleared up the mess in a few days. My frogs and fish were fine. I run the waterfall 24/7 always (except winter).
   Simeon LawrenceVerified Purchase

   Rated 5 out of 5

   When used as directed, this solution kept all forms of algae out of our 500 gallon pond all summer long. I had a moss problem earlier that is now corr...More

   When used as directed, this solution kept all forms of algae out of our 500 gallon pond all summer long. I had a moss problem earlier that is now corrected, so only the algae problem remained. It's now fixed and I only used half of the container this season. I suspect the other half will work next year.
   Seren WelshVerified Purchase

   Rated 5 out of 5

   I've used this product after the winter to help clear my pond up. I do have to use this product regularly to keep my pond clear. Caution should be exe...More

   I've used this product after the winter to help clear my pond up. I do have to use this product regularly to keep my pond clear. Caution should be exercised when using this product. Your pond needs lots of aeration for the product does reduce the oxygen in your water. This is very important if you have fish.
   Cole DavieVerified Purchase

   Rated 5 out of 5

   When you have that fast build up of algae, this gets rid of it quickly. You literally can watch it die. It does create a build up from the dead algae,...More

   When you have that fast build up of algae, this gets rid of it quickly. You literally can watch it die. It does create a build up from the dead algae, but if your pond is healthy, you should be able to manage or remove the added biomatter. I am a repeat user. It doesn't harm the dogs, frogs, fish, birds or dragonflies.
   Ned RedmondVerified Purchase

   Rated 5 out of 5

   Finally I found the product that keeps our pond very clean. I tried many brand named products like pool shock, algae shock, clear water solution. But ...More

   Finally I found the product that keeps our pond very clean. I tried many brand named products like pool shock, algae shock, clear water solution. But every time green algae won the battle. So I was having it cleaned every year in April. And by September it’s all dark dirty green, that too while using those brand named products.
   Aimee McmillanVerified Purchase

   Rated 5 out of 5

   I have a small pond, as well as three water gardens. Algae has always been difficult to control, especially as the water warms. I have tried many prod...More

   I have a small pond, as well as three water gardens. Algae has always been difficult to control, especially as the water warms. I have tried many products to control it. I have never had good results until using this. Just a small capful and waited a day and you could see all the way to the bottom (about 24"). It is crystal clear!
   Conal HerringVerified Purchase

   Rated 5 out of 5

   I was a bit slow to cleaning my pond this spring and found myself remorseful when the algae got out of control. BUT consistent use of API products sav...More

   I was a bit slow to cleaning my pond this spring and found myself remorseful when the algae got out of control. BUT consistent use of API products saved my pond. Thanks API for all your products
   Lilith HoVerified Purchase

   Rated 5 out of 5

   It breaks my heart to read that pond owners have actually killed their beloved fish when using this product without following the directions about pro...More

   It breaks my heart to read that pond owners have actually killed their beloved fish when using this product without following the directions about providing adequate aeration in their pond water.