Copper Sulfate Crystals 99.8% Pure [Fine Grade] - 50 Lbs.

I use this for two fishing ponds. But have found out it works great in my 18 x 42 above ground pool (+- 23,000 gal). I live in the country and am on well water. In south Texas that can cause a lot of Alge problems. I use about 2 teaspoons of this stuff every second or third day and no problem. Save a ton of $ on chlorine. Went on vacation with no one to tend pool added 1 1/2 cups, gone almost 10 days pool water still clear and sparkling.

I use 15 pounds in my 2 acre pond every 30-45 days during the summer to control algae.

Rid our 2 acre pond of coontail and murky green with no harm to animals or fish

This copper sulfate powder is recommended to stop root growth in a septic system. This was the best price, but the paper bag in the corrugated box had a leak. I think the seller knew it was leaking. By the time I got it the box was leaking too. What a mess!

My complaint about this product isn't that it's not copper sulphate because that's exactly what it is. The problem is that even though I have purchased copper sulphate through Amazon several times, THIS time when I clicked "buy again" the site took me to this product, which is not mini crystals. It is fine, almost powder, and very hard to use. So, I don't know whether the company didn't correctly describe the texture or whether Amazon mistakenly suggested the wrong product. I only know that for hand application of copper sulphate to control algae in a lake or pond, this isn't a "mini crystal" form of copper sulphate, it's powder.I took the time to re-trace the steps to "buy again" the copper sulphate I had purchased previously. Once again Amazon included this powered product in with the mini crystals I need. That is not the fault of this seller.

It did what it was supposed to do

As advertised