Most helpful critical review
1 of 1 people found the following review helpful
on June 22, 2012
I'm comparing it to the algaecide plus by aqua chem. I put aqua chem in over the mustard algae; it sank directly down to the algae in a white cloud. I immediately saw the dead algae pieces float to the surface. After two bottles of aqua chem brand, algae was left on only one side. Decided to try Kem Tek (cheaper) put it in two hours ago, directly over the algae. It did not sink to the bottom where the algae is. It simply floated away. Algae is still there. Dead algae nor blue dye is anywhere to be seen. I WOULD NOT buy another bottle of this. "Two hours not enough time?" Compared to aqua chem more than enough.