Update: I put a single barley straw bundle in my 300 gallon pond last April and the string algae was gone by June | Backyard Ponds Water Gardens - Vivisector
Update: I put a single barley straw bundle in my 300 gallon pond last April and the string algae was gone by June
I figured it was a myth, but three months later the stuff that choked my waterfall pump for two springs just never came back, so now I want to know if anyone has tried this in a pond with koi since I am worried about the rotting straw in winter.