No, it's not silt...at least I haven't seen what I'd consider to be silt. The pond is just crazily overgrown with grass. The piles are all grass that I've pulled out. The Parrot stuff is rooted heavily, the other stuff seems to be muskgrass based on the identification site I just looked at. I can provide a better picture of that if needed.
I've also added some water hyacinth...but it's not as hard to get out if it gets out of control...And maybe I shouldn't even have that in there, either...?
The construction areas are far enough that I wouldn't get that much from them...I just thought maybe getting some of their fertilizer may have contributed to this plant explosion...
