CrystalClear Barley Extract Water Garden & Fountain Clarifier, Natural Liquid Concentrate to Treat Cloudy Ponds, Koi Fish, Plant & Pet Safe, 1 Gallon

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Have ordered a few times and keep coming back for more. Works great

It works great and my pond water is so clear

it works to help maintain algae, along with some other things

Excellent product works exactly as described- used for my algae- ridden fountain in Arizona. Quickly cleaned up the water, made pump more efficient (since algae wasn’t clogging it up), AND rabbits and birds are still drinking out of it!

We have a 3000 gallon koi pond that our UV light went out on the end of last year. We had high hopes this would work and would keep us from needing to order another UV light and run electricity.At first I used the recommended amount. After a couple days it didn't seem to be changing at all so I used the recommended amount again. A few more days went by and nothing changed so I doubled the recommended amount. After a week of nothing changing I decided just to pour the rest in, surely that would knock out the green and get us back to clearer water. Another week went by and absolutely no change. This stuff did not work in our 3,000 gallon pond and the 1 gallon bottle we purchased is actually rated for 64,000 gallons. We purchased the gallon jug because I was expecting to be able to use it for the rest of the year. Using the entire gallon jug on a 3000 gallon pond I expected our pond to be fairly clear within a week but we seen no change in the green water.I ended up going ahead and purchasing a new UV light like we've used in the past and it cleared up our pond within 2 weeks like the other UV lights have done in the past. With the UV light we were able to see a noticeable difference within a few days.

Arrived right on time!

Works great! I had a lot of algae and it took about 10 days then all of a sudden it was gone.