trust me on this...Listen to Randall James. I had an algae problem in my tank...My tank is now 5 months old..I rushed the bio load on my tank and got the dreaded hair algae too..but..I am still working on it but is is way better...less and less hair algae everyday! I did as he said.
1) 15-20% water changes EVERY week!
2) less feeding! Fish do not need to eat their weight in food everyday!
3) a little less light
4) use ro-di water ONLY
5) I also have a phos reactor using phosban
6)tank maintenance! I left my rock in the tank...scrubbed rock with stiff bristle tubing brush everytime right BEFORE my water change...netted the floating algae..and left the overflow suck it out too...let the powerheads woosh it around while I hand netted and overflow sucked out the loose algae..siphoned the very top of my sand..cleaned my skimmer often.
7) I have a sump/refugium and never cropped my chaeto before but finally realized..you have to trim the chaeto when the refugium is full so as to encourage new growth on it! There are plenty of people or LFS to take that EXTRA chaeto off your hands!
8) and last..but not least..BE PATIENT! it does go away.
I am all for fixing the source of the problem than just the look of the tank..
I have been battling algae growth in my tank for like 2 months now.(my tank is 5 months old). It was never REAL bad but bad enough I realized a potential devastating problem if not tended to...but now...wow! it is way better than it was..and now there is very little left..
a little effort and perseverence paid off..:rollface: