Cutrine-Plus Liquid Algaecide - 1 Gallon EPA-Approved Copper Formula for Fast Control of Planktonic, Filamentous and Chara Algae - Professional-Grade for Ponds, Lakes, Hatcheries & Irrigation Systems

Absolutely zero effect on our algae

Awesome product. Keeps the algae in check. Constant cycle help remove and control

Our pond is 100 feet across and sixteen feet deep. We have a windmill that provides aeration which helps but we have been battling filamentous algae ever since we built the pond in 2008. Usually we have to remove the green, slimy mess using back breaking labor, raking and even going out in a row boat and physically scooping it up with a pitchfork! After doing a bit of research we decided to try the Cutrine Plus this year(2013) I used a three gallon sprayer with the one gallon of Cutrine and two gallons of water. I don't know if it helped but I applied the Cutrine directly to the algae blooms, the sprayer could shoot about fifteen feet. In TWO days we checked the progress and 98% of the alge was gone! We have the pond stocked with blue gill and bass so had some concerns over toxicity but it has been three weeks since the application and I have seen no evidence of dead fish, in fact there are schools of minnows by the hundreds so I figure if the little fry are surviving things must be OK. The money spent on the Cutrine about equals what I spent for the Motrin I needed after last year's battle... I bought two gallons so I'm ready for next year's application! Live better through Chemistry! [EDIT] CHECK your concentration! The first two jugs I bought from another vendor were a 9% solution. The two I recently purchased through Amazon turned out to be a 27% copper solution! The data above says 9%. Were these sent in error? Of course at 27% I'll be using 2/3 less.

Good for algae in stock tanks. Effective and versatile for both floating and submerged algae. Takes some trial and error to get the proper mixture for your individual needs. Mixing instructions are overly complex and somewhat difficult to interpret. I felt as if the instructions and mixing guides were written to protect the manufacturer from liability rather than to actually help the consumer. I use Cutrine alone or in combination with diquat depending on the problem which has arisen. Once you get your mixture right Cutrine is an effective, economical treatment. Does not kill Duckweed or Azolla.

Good service and a good product for our pond.