Are We Heading Towards Another...
Politics1 min ago
No best answer has yet been selected by Tony Hunter. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Stevie-p's answers are good...the cloverleaf chemical treatment is supposed to be awesome. Barley straw will not get rid of blanket weed....just green water and that can be hit and miss.
So, the only way you're really going to rid it is to deprive it of its nutrients....sunlight and fish waste.
As it'll be hard to stop the fish waste, i'd plant it up with lillies and lots of plants which will keep the pond covered.
A good filter and UV will help matters as will a good balance of plants...both water and marginals. And don't over feed.
Otherwise, it's back to manual methods.