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Copper Sulfate(Med CRY) 50 LB L00100

SKU: 65260232  |

In Store Only.

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Copper Sulfate(Med CRY) 50 LB L00100

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Get that crystal clear pond or lake you have always dreamed of by using Copper Sulfate as an algaecide to control the Filamentous and Planktonic algae in your water.  Finally get rid of that nasty swimmers itch and enjoy the water once more.

Discovered in the early 1900's Copper Sulfate has been used for effective algae control in lakes, ponds, ditches, pools, golf course water hazards and irrigation routes. Its blue colored granules broadcast evenly or you can dilute it in water for even distribution.

Copper Sulfates works by binding to the proteins in fungi and algae causing them to leak and die off.  It is most effective when used on the bottom mats and first application should be performed as early in the season as possible to kill off existing shoots and prevent others from sprouting.

Copper Sulfate is not as effective in hard water as chelated products and is also toxic to fish in soft water areas.  It is corrosive to metal equipment, thus it should be used with caution. Apply 2.7 lbs. per acre foot of water. There are no restrictions on immediate water usage.


  • 25% Copper Compound
  • Effective against Filamentous, Branched and Planktonic Algae
  • Easy to Spread Blue Crystals
  • NSF Certified Algaecide Product


This item cannot be shipped to CA, CT, ME, NJ, NY, OR, or WA

We are unable to ship this item outside of the US.

SKU 65260232
Model L00100
Weight 100.0000
Color No
Size No
Width N/A
In Store Only Yes
Price $125.97
Rural King provides a defect or damage warranty within 30 days of receipt. All Manufacturing Return Policies Supersede Rural King's Return Policy.

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Q & A

Product Questions

Is Copper Sulfate ok to use in-ground swimming pools?