There are numerous resources that may help in your battle with hair algae...below is some info that may help.
<a href="https://www.saltwaterfish.com/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=12&t=009964" target="_blank">algae issues</a>
I have had sucess with snails, hermit crabs, yellow tang and lawnmower blennies to get rid of hair algae. However, the key is reducing nitrates and PO4 and running lights no more than 10 hours a day.
i had the red algae problem until i reduced the amount of food that i put into the tank. instead of feeding daily, i now feed every 2-3 days. reduced algae and the fish look fine.