Hair algae ugh - what to do?

[stellarfly]

Adding things like sea hares, and tangs and blennies is almost always a reactive step to a much bigger issue. Algae problems, like mentioned before are almost always an input issue. Just cause a creature can eat it faster than the algae can appear is not a solution. Find the root of the problem such as managing your inputs. Make sure to rinse food before putting it in the tank. Feeding corals with a lot of stuff can be a recipe for a trashed tank as well.
Also, is your skimmer under rated for your tank? clean the skimmer cup every 3-4 days. Running GFO (or something like it). Also, remember that fixing algae issues is gonna take time. Another thing that people over look is things like rock work. Is the aquascaping as open as possible? preventing detritus from building up helps as well. Last piece of advice is to be patient. Stick to it and stay the course. eventually u will win the war on algae.

Hope that helps