Thinking about adding a blenny, please help

[tbrown3589]

I currently have a Lawnmower Blenny in my 75 gallon tank, but he seems to have given up on my hair algae. I used to have him and a yellow tang and never saw any hair in my DT, only my sump, but when the tang started going psycho on my other fish, I got rid of him. I recently upgraded from a 150W MH w/ Dual 23 watt PC to a 120W 55 LED light w/ 28 Blue 450nm and 27 14000K. I needed to replace all my lights and decided to spend a little more and get an LED fixture instead. Now, the algae seems out of control. I am working on trying to lower my phosphates just in case that is the issue. The question is: Is there another algae blenny I can add with the lawnmower or do I just need to adjust the lighting times or intensity? I have a hammer, a frogspawn, mushrooms, a couple of zoas/palys/button polyps, a lether finger, and some GSP. All my corals are doing great(Hammer split, frogspawn started putting out baby polyps, leather is growing, and GSP is spreading). It is odd timing, but after I changed lighting, my green chromis died, then my yasha haza shrimp goby disappeared, then my yellow-eyed kole tang disappeared, followed by the disappearance of my pistol shrimp and an explosion of baby feather dusters(which I think means my nutrients are too high). Do I need to try a large water change? When people say nutrients, they are referring to what, phosphates and nitrates...? I don't have a test kit for phosphates. I skim about 3 cups of dark green a week, I just started running a phosphate reactor 2 days ago, I have a refugium in my sump with LR, DSB, and cheato(which has not hardly grown at all in the year I have had it). I am fairly new and inexperienced at this whole saltwater thing. Please help. And if you're going to tell me I'm a retard for asking, don't bother responding. Retards don't ask, they just do things. I am trying to avoid making a mistake, but the hair algae is out of control. :headwalls:
Fish list:
3 Ocellaris
1 Firefish
1 Lawnmower
1 Six-Line Wrasse
2 Skunk Cleaner Shrimp
7 or 8 hermits(some blue, red, zebra, I think I need more and am considering the Neon Blue or Halloween)
4 Turbos(need to add a few more I think)
11 Cerith
1 Turban
6 Nassarius
2 Hawaiian Feather Dusters (tons of babies the last two weeks)
Palys/Zoas/Buttons
Mushrooms/Ricordeas
Leather Finger
Green Star Polyps
Hammer
Frogspawn
Xenia

75 Gallon tank, 100lbs LR, 3" DSB, 29 Gallon sump, 10lbs LR, 4" DSB, Cheato, 125 Super Skimmer 120 watt 14000k/450nm LED (whites are 35% for 8 hours, blues are 50% for 12 hours, no moonlights)

 

[igot2gats]

How often do you feed?

 

[tbrown3589]

I feed once a day, very small amounts. Occasionally I toss in some mysis shrimp.

I actually recently reduced feeding from twice a day and decreased the amount of feed. The algae bloom started after upgrading my lights. I want to fix the problem long term, but would also like to potentially add a second blenny if there is one I could safely add. I don't mind feeding algae after my nuisance clears up.

 

[Triggerfish]

my remedy for HA was the following.
seahare followed by turbos.
i past the the seahare on to someone after it was done eating in my tank.
after that without changing any water parameters it doesnt seem to come back with exception on one small area.