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Step 3: Crystal Plex Algae Control

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$ 59.05
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$ 57.25
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# CP30
In Stock
Weight: 10.00 lbs

Read/download our Pond Care Guide to identify the most common types of algae and submerged weeds, and to see our handy 4-step program to get your pond ready for summer!

Delivers long-term algae control by using proprietary stabilizers. This 30-day algaecide is a liquid copper sulfate solution that kills and controls algae such as filamentous, chara and placktonic, as well as some aquatic plants including hydrilla. Not for use in Koi, Goldfish, or Trout ponds! 100% safe for humans, fish, livestock, pets, birds, swimming, potable water and irrigation. Spray directly on the algae mats for control, but treat only 1/3 - 1/2 of your pond at a time to avoid oxygen depletion. One gallon treats 1 surface acre, 1-3 feet deep. Ship wt 10 lb.


  • Active ingredient: Copper Sulfate Pentahydrate 19.8%
  • 1 gallon bottle
  • Classified as state-restricted in VT, CA, CT, NY, NJ; We are not licensed to sell into these states, and neither is the manufacturer.

Product Features

  • For use in lakes, reservoirs, swimming areas, ponds for farms, fish and irrigation. Also for golf courses, crop irrigation converyance systems, canals, ditches and fish hatcheries



Application Rates

One gallon treats one suface acre, 1- 3 ft deep. Only treat 1/3 to 1/2 of your pond at a time to avoid oxygen depletion.

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