I haven't seen anything regarding the costs yet. Try contacting Aquatic Control and see what they say. I'm not sure who else carries it yet. Also, GreenClean is a non copper based algaecide that actually puts oxygen in the water as it destroys algae so it could reduce the chance of a fish kill. GreenClean begins destroying algae almost as soon as its applied. I have only sampled small areas and have not tried treating a fully covered pond. Hopefully someone can jump in with advice if you are interested in trying it. The application rate is up to 90lbs per acre foot of water and the approx costs I have seen are just under $200 per 50lbs bag.
