Healthy PondsAquasphere Pro Biodegradable Pond Treatment, Treats up to 250,000 Gallons

I've used these for years, along with an aerator to keep my pond from getting scummy and stinky. I've tried other products that cost less but I always come back to the aqua sphere. It seems to do the best job.

Noticeable improvement in water.

I've used the Aquasphere pro for my pond for years and it works great.

The pond appears clearer around a 50ft. radius of where the Aquasphere was deployed.I was hopeful that it would have been more successful.It is too expensive for me to deploy every month and in the number I would need to completely clear the pond.

Good product. The trick is in understanding that these things take time! I have been using them for about 9 months now, it's winter now, and my water clarity is superb and aquatic vegetation is greatly reduced now. Plan to continue use and add UV dye in spring with expectations of a clean, good looking pond next summer. Thanks and regards. 2B(ontinued:)

I like to use these because all you do is throw it in the middle of the pond!

It works. In the pond

I bought this to reduce the algae in our pond and got a ball over twice the size we needed. However, it did absolutely nothing.