Stupid Freakin Algae

[Chaloupa]

I have been battling algae in my reef....the pic...looks like all my rocks. There is no way I can tear it all apart and redo it. I have mushrooms and corals placed in too many places. I have decreased my feeding, and I have a Phosban Reactor that has been in place for 4+ weeks. I have a Kole Tang, Bicolor Blenny and had a Lawnmower Blenny-none have touched it so I go in every week and pick it off to the best I can. Any suggestions on how to deal with it? I have a Purple Tang in my FOWLR awaiting my next reef...do you think that if I switched out Tangs that he may help?
- I have a 65g hex, Coralife Aqualight Pro, Remora Pro Skimmer, sump, overflow, 70lbs live rock, small crush coral substrate
- 0 Ammonia, 0 Nitrite, 5 Nitrate, 380 Ca, 10-11 ALK, 1200 Mag, T 80-81, 2 Maxijets for flow, plus the return pump that I can't remember what the flow is...we water change every 10-14 days BUT don't use RO water...lots of mixed input on that...
- I do have the tank fairly stocked;5 blue legged hermits, 4 BG Chromis, 1 Kole Tang, 1 Yellow Watchman Gobie, 1 Bicolor Blenny, 1 Cherub Pygmy Angel, 1 Female Mandarin Dragonette, 1 Yellow Gobie, 2 Cleaner shrimp and 1 Coral Banded, many corals and shrooms and a few zoos. HELP! I don't know how to make it bigger.....hope this is ok....any help is VERY appreciated! I have also had 2 Seahares and not had them survive...they are definately not starving!