Applied Biochemists 38005901015 76513 Cutrine-Plus Professional Strength Aquatic Algaecide, 1 gal

Absolutely zero effect on our algae

Works as advertised on algae. Kills floating algae in my 2 acre pond. Does not work on sub-surface algae or weeds.

I applied this to my pond and the next day, it was already showing signs of working. I'll give it a week and see what the results are. So far I'm happy with this product.

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.

This product works. Just be prepared for the blue water it creates for a couple of days.