: copper sulfate powder
QRY 1/2 lb % Pure Copper Sulfate Powder (Pentydrate) for Floating, submerged and PlankTonic Algae. 14. 50. FREE Shipping. Only 4 left in stock order soon. Copper Sulfate Crystals 99% Min. Purity 10lb. out of 5 stars 2. 26. 50. FREE Shipping. Copper .