Lower your photo period as well as dose some Flourish Comprehensive (is said to choke out algae). The toothpick twirling thing will only get rid of it temporarily, same with the soaking of the affected plants in vinegar/peroxide. If there's a nutrient imbalance or too much lighting present the algae will just come right back. Mollies and Siamese Algae Eater's (NOT Chinese) will eat hair algae as well. Good luck, it's a curse.