Airmax Nature's Blue Pond Dye 4X Concentrate for Outdoor Ponds & Lakes, Natural Pond Colorant & Beauty Enhancer, Block Ultraviolet Rays, Fish, Bird & Livestock Safe, Easy Liquid Application, 1 Quart

We have a lot of pond weeds growing in our 1/4 acre earth pond every summer, making it look very unappealing (except to the dogs). Previously we have used a different color dye from the Pond Guy, but it made the water resemble the Caribbean, and we live in North Idaho. This time we chose the Twilight Blue color, applying it towards the end of March to get a head start on the weed growth. The color is really nice, a darker blue that looks pretty natural for our area. We initially added one cup of dye, but the color wasn't quite as dark as we wanted so added another cup, which did the trick. When the weather warms up, we will try Muckaway to help clear the bottom of the pond, which is now about twenty years old. Over ten years ago we added a baggie full of goldfish to the water (from a pet store, to "help" feed the turtles); there continue to be several large schools of goldfish of different sizes and colors that over-winter, so they are alive and well, and attracting herons, Kingfishers, ospreys and mergansers. Hopefully the darker color of the water will make it more difficult for them to get picked off! We plan to use the dye every 4-6 weeks as recommended; it is very cost-effective for us since our pond is small with a constant influx of water from an underground stream, and doesn't need aeration.

This dye does a great job. We've been using it for years. Our only issue is in the packaging. On the last order we received the outside bag was open and because the individual bags are water dissolvable, they were a mess. The product is still great but packaging needs improvement.

Great product I mainly got this for my pond/ water feature it’s about 750 gallons I used 1 cap full. It was way to much. for fountains use an eye dropper or you can really over due it works well to keep the algae out.

Properly packaged and shipped on time. A little pricey in my opinion and no matter what I do, I get blue dye everywhere. However it seems to last and helps slow down plant growth which means less work maintaining the pond. I waffled on a fifth star but the price is what brought it down. I might try another brand one day but if it ain’t broke….My pond is 0.1 acres and this bottle will last me one and a half seasons.

A great concentrate for small ponds.

This cleared up my fountain problem in just a few days

Did excellent for the water!

Was kind of surprised when pond did not keep blue color except for a week. I hate to give a bad review but this product did not do as shown.