You know the kind. It has those little black dots in it and is mushy in your fingers when you pull it off your lure.
My favorite sand bottom pond is starting to grow this stuff after being "pristine" for many years. How do you nip it in the bud? I've thought about going out and netting a bunch of Plecos and turning them loose in there. There are already a few grass carp and it has NO growing vegitation in it at all.
Help! Before it becomes like the pond next to it which is a mucked up mess, and has been for quite some time.