Crystalclear® Algaeoff® – Granular Algaecide


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Crystal Clear Algae-Off is a granular algaecide for water gardens & koi ponds!

Benefits Include:

  • Immediate Algae Removal
  • EPA Registered
  • Non-Toxic to Fish
  • Safe for Plants
  • Removes String Algae
  • Effective Against Green Water
  • Works Immediately on Contact
  • Removes Odor
  • Adds Oxygen

Available in Two Sizes:

  • 2 lb. Dry
  • 10 lb. Dry
  • 25 lb. Dry

16 tablespoons = 1 cup
2 cups = 1 lb.

What Does Algae-Off Do?

Algae-Off will help remove string algae from waterfalls, streams and rocks in seconds. Use the maintenance dosage of Algae-Off once a week and eliminate complete pond shut down for yearly clean-outs forever. Algae-Off will also keep fountain intakes clean and remove unsightly scum from the perimeter of any size pond. Algae-Off is your personal pond cleaner in a bottle, without the time, money, mess, effort to catch the fish, drain the pond, wash and scrub the scum in the pond, refill the pond and put the fish back in hoping you don’t stress them and kill them. This usually 4–5 hour process can be eliminated forever by simply treating your pond once weekly with Algae-Off!

Is Algae-Off Safe for Fish & Plants?

Yes, Algae-Off is safe for fish and plants when used as directed. Be sure not to exceed the maximum dosage for your pond, and don’t use in combination with other algaecide-type treatments.

Application Rates for Water Treatment

  • Light Algae Growth: 1-2 lbs. for every 1,000 square feet of surface area.
  • Heavy Algae Growth: 2-3 lbs. for every 1,000 square feet of surface area.

Light Algae Growth Application

Surface Area Amount
25-50 sq. ft. 1/4 cup
51-100 sq. ft. 1/2 cup
101-150 sq. ft. 3/4 cup
151-200 sq. ft. 1 cup
201-250 sq. ft. 1-1/2 cups

Heavy Algae Growth Application

Surface Area Amount
25-50 sq. ft. 1/2 cup
51-100 sq. ft. 1 cup
101-150 sq. ft. 1-1/2 cups
151-200 sq. ft. 2 cups
201-250 sq. ft.  

Additional information


CC074.2, CC074.10, CC074.25


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