[quote=
....I was told that four percent water coverage was needed to handle really nasty water. Also, it is far more effective when current runs through it rather than still water.[/quote]

They are telling me that I need 1% coverage to control excess nutrients in my pond (ie. not a wastewater project)

The original manufacturer of this product has another product they call Leviathan that incorporates an aerator to en-train water flow through the island. They claim that trout will spawn in this artificial waterway. However, at over $6,000 for 1% coverage for 1/3 of an acre, I'm not looking at any upgrades!