You're welcome. Regarding the hair algae issue, I had had a problem with it for about 2 years as well, despite top of the line equipment, aggressive skimming, phosphate below .024 ppm, no nitrate, very limited feeding/fish population, using Rowaphos, etc., etc.
I think the wavebox helped get out any excess crud tucked away within the rock structure, and float it out where the skimmer could get to it.
Now, I've been feeding much more rich food, and more of it; my SPS are growing the fastest yet which I'm sure also competes with the algae as I've been getting *very little* green film on my glass.
Now, if I can only make my A. Subulata color back up as shown in my avatar.
Good luck.