Depending on your water transparency it will PROBABLY not grow much deeper than 5-7 ft deep. But in clear water conditions (clarities to 5-8ft) the amer. pondweed could grow into 8-9ft of water. I like Amer. pondweed because it grows underwater in loose, vertical strand, open beds that fish can easily swim and move through. Am. Pond weed is a very beneficial pond plant for protecting small fish and for growing invertebrates that feed small and medium sized fish.

Thin it whenever it grows to amounts you find it a nuisance. A Y shaped weed cutter will do a lot toward clearing and thining large areas of the weed patches. Try not to eliminate it. The Y cutter (water weed cuter) has been discussed here in old posts, it is sold by Outdoor Enterprises Ltd and advertised in Pond Boss mag.


aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management