Copper Sulfate Large Crystals 50lb Bag

Seems to have solved our blanket weed problem in our pond. Not our duck weed- but the blanketweed was a much bigger issue for us.

Ordered large crystals and received feed grade instead. Product is good but unhappy with what I received. Harder for me to use in my application.

I used to clear algae from my pond. I highly recommend to all for this purpose and will buy from this seller whenever I need such products in the future.

pond algae

plenty of large dlow disolving crystals to fight invadive roots!

Very good product

This product was not supposed to kill fish in your pond when used. I used approx. 1 quart and a half in a 1acre pond on Monday 6/8/20 and the next day fish started to die. It will kill weeds also but would not have used if I knew it would kill fish. Will not use the remainder of this order nor will I buy anymore. Cant give it any stars as it killed my fish which it was not supposed to do.