9 LBS Copper Sulfate Fine Crystals, Powder 99% Pure Granular (4.1 kg) EPA Free
Variety of Uses and Applications: Preparation of Bordeaux and Burgundy mixtures, Timber preservative and in the preparation of other wood preservatives, Electrolyte in copper plating and electroforming, Copper coating steel wire, Printing Etching agent for process engraving
Koi, Goldfish, and Trout are extremely sensitive to copper sulfate, and carp can also be sensitive. Ponds with these types of fish should be treated with minimal copper based products.
