Crystal Plex - Lake and Pond Algaecide Treatment - Liquid Copper Algaecide Kills and Prevents Various Types of Algae (Planktonic, Filamentous, Chara) - 1 Gallon Treats up to 1 Acre

Excellent product!!!! Our pond is clear of the algae and safe for the game fish and ducks.

Great product

I tried this in both my small artificial pond (no fish) and also in my water fountain.I will continue to use this in my water fountain but found that it didn't work very well in my small pond.

Works well for our needs

Put this in my pond at the time there was just a little algie around the edges, a day later my whole pond is covered with green slime. Total waste of money, did absolutely nothing in fact it made it worse

Works well! We have intermittent algae problems in our little pond. I apply this a few times a summer and it clears it all right up! We have bass, bluegill, frogs, and a turtle in the pond - all of them seem fine and happy to not be swimming in algae soup! Used 2+ years now and very happy with the product.

This is a good product but was unhappy with the packaging of this product upon opening, the product had leaked. 3 stars due to packaging and leakage of product.

This stuff had a slight killing effect on the algae in my pond. But, it never completely dissolves and it makes a mess of your sprayer equipment. I went back to cutrine plus which has no solid particles, sprays easily and really kills the algae. I tried this product to save money but it was not worth it in any way. Save your money and buy cutrine plus.