place bags or bales near water movement such as aerators

System comes complete with:

Smooth stainless steel ball-bearing valve

Pond Detoxifier also allows some metals

Will not break apart and cloud water

SePRO Copper Sulfate Blue-Stone Crystals for Pond Algae Treatment feed-cl0-blue pond dye place bags or bales nearCopper Sulfate is a good alternative to other algaecides. Works in many different water conditions, including hard water. Copper Sulfate will kill on contact. Works great on Chara and Filamentous Algae Inexpensive algae control Crystals can be diluted into a sprayable solution to kill floating algae Available in 5 pound container only Application Rate 2 4 lbs of Copper Sulfate per 1 acre foot of water Please see label for complete product information.