Yes I have to agree. Brown algae is probably the most annoying. I've found that common pond snails really just wipe it out completely. I'm planning to get a bunch and release them like an army in my tanks so I don't see it again.
Also beware the pond snails reproduce worse than rodents. They are also extremely good and contribute to producing infusoria. Also it has some to do with not enough water changes and too much lighting. I can't change my water all the time because I don't want to disturb the pair.