Using hydrogen peroxide to kill algea.

Hello, I have newly set up dirted tank and now am experience some issues I believe to be some kind of hair algea. It seems to spreading. I was wondering if any of you had used hydrogen peroxide to kill algea. I know people use Excel but I do not want my Val to melt back. 

Does h202 work? How should I dose it? What percent should I use? Etc etc. Please let me know if you have any suggestions. Thanks.