Review on 🐟 Aquatic Experts Large Bio Balls Filter Media - 1.5 Inch Pond Filter Bio Ball - Top-Quality Media for Pond Filters – Made in The USA by Dora Luna

We've been battling the green water monster since spring and finally found that our UV lamp isn't working properly. I came across these while looking for a new one. A few years ago we had a new pool with a waterfall installed and somehow these little things were forgotten. I decided to order these as the light would take a while to get here. We put them in a pool and in just 24 hours the pond was crystal clear. I was shocked that they worked so well and only had one pocket. Due to the size of the pond, I immediately ordered another bag. Feel free to buy them. They really work.