MICROBE-LIFT ALGAGAL Algaway 5.4 Algae Control Treatment for Ponds and Water Gardens, Safe for Koi Fish, Goldfish, Plants, and Decorations, 1 Gallon

This stuff works really well. It cleared up all the algae in my pond and helps me maintain it. Also it was a little bit more than what I wanted to spend, but the stuff is expensive so it does its job.

For some reason, this is the first summer that I've had algae growth in one of my fountains, which I've had for fifteen years. I think it's because of the excessive heat on the west coast.The green algae grew in long strands and adhered to the walls of the fountain with a strong bond, so it was difficult to clean it manually. It also clogged up the underwater pump.Within a day, the algaecide killed the growth and a few days later I was able to "scrub" it off the walls. Now I put in a couple of tablespoons periodically and it stays clear.

Worked amazing BUT killed all my pond plants

I read the reviews and I was nervous since we recently added new Koi after losing some big ones last year. We have a 200gal pond. I don’t know why but despite doing everything our pond was completely taken over with algae. I did SMALL AMOUNTS every day for about 6 days and today I couldn’t believe I could see the bottom of the pond and all the fish 🥹 I used this in tandem with Dr. Raifyas Pond Refresher and wow!No fish loss. If you use a couple cap fulls a day, you’ll be good.On the 5th day, I used a bit more and was able to see to clean the excess algae and buildup off the sides and surfaces and did it one more time today. Highly recommend.

Product did not help my pond with the string algae at all. It’s a new pond and string algae is expected while good bacteria forms in my box filter. It didn’t do a thing to destroy or control further growth. It’s only a 77 gallon pond, and after an entire bottle (not at once) I’m still battling the algae that’s consuming my plants.

Not the best product for my bucket fountain. I have to add more often than recommended. My water does clear up, but there is still algae in the bottom and I have cleaned it.I won't buy again16 oz bottle

This brand is fantastic, and the only one I buy now. Microblift is a solid, US based brand, and I switched from API to this as the API made me nervous based on what they do to pond bacteria (the good ones) and my plants seemed sickly. This does a FANTASTIC job of controlling algae and not effecting my beneficial pond bacteria. I couple it will cleaning my water intake filter and add their PL pond bacteria. I can't recommend this enough. Excellent customer service out of Florida. They know their stuff and it is quality.

This is the first algae product that has ever worked as it is supposed to. I have purchasing similar products for over 15 years and have never found one that does the work this was does. I will rebuy this product again as necessary!