So this is the second year this happens and I've had the pond for two years (made it deeper this year). When fall comes in, the leaves fall (this time I made sure the net is on the pond early) and the three trees covering the pond are without leaves so we get lotsa sunlight during the day directly at the pond.... and that's when the algae goes berserk. No I'm not feeding the fish and of course it doesnt help that the bog is mostly inactive with many of the plants wilting from the cold. What do you guys do to help this? Last week I put on some shoulder length rubber gloves and started gathering the string algae.