New 1/2 acre pond southern Indiana 10 ft deep, built in sept of 2006.
I've developed this patchy floating scum like brown substance almost like thick nasty gravy, 2 things have happened lately. The water temp has warmed a good deal and we had a windy storm that blew some tree debris(leaves)into the pond. The last few days this brown stuff has steadily increased, it is scattered throughout the pond, the biggest area is about the size of a large dinner plate, seems to be increasing. My neighbor about a mile down the road looks to have the same issue. Is this just a type of algae? What do I use to get rid of it, I'm a rookie and obivously want to keep the fish alive and the pond attractive to swim in.
