Go to this Web Site and check this product out.
www.pondclearproducts.com This product is the very best of all the products I have tried. It really works. I have tried them all and this is the one for your green water (algae) problems. No more harsh chemicals that can harm :'( or kill your fish.
If you would decide to order from them, tell them you heard about them from (pahunter on American Ponders) and you will receive a 10% discount. They will even do a group buy. You really owe it to youself to check them out.
I did and it's the best thing I did to make my ponding more enjoyable. CLEAR WATER IN NO TIME My water was green and again I was trying different things to clear it up , BUT NOTHING >:(till I heard about this product
You have nothing to lose BUT YOUR GREEN WATER. GOOD LUCK