Thanks Meadowlark for quick response. This is my fisrt post on hear and Im sure this topic has been well coverd.So I dont want to start it over again. Just one more quick question... how far does a gallon of reward go and if I rack and seine out most of it, will it continue to grow back. talking to the previous owner of the ponds they have never had this problem before. Is this a once a decade thing or a continued problem from now on. Is there any cheaper (experimental ) way of treating this, some old school remedy someone has tried with success in the past.

Cheapest price qoute so far is $125.00 a gal for reward. What is Diquat? another chemical, is cheaper. Remember these are fairly small ponds.

Thanks again for any info.

Big Fish Cliff