Light Algae problem

[dzones]

I have had my 125 for about 5 months now and have had to scrape algae from the front glass almost every day. it is a light green color and comes off very easily with any type of scraper. (my tang loves to follow me as I do this as she gobbles up what comes off in strips.)
I have checked all my levels and they are all at 0
my phosphates are not even showing up on the charts
I am using all salifert kits for measuring.
I have dual 400W mh 20k ushio (9hrs a day)
3x 55w 10k pc's (10 hrs a day)
3x 55w actinics (11 hrs a day)
two led moonlights at night
I do not feel the tank is overcrowded or anything as my amm and such levels would indicate that I would think.
I have a sump and fuge that contain about 50g total. the fuge is well populated with caulerpa, pods galore,ls, lr.
any thoughts as to why the heavy amounts of this green algae on the glass?
it does not appear on the rocks that i can tell.
when i scrape it off it seems almost like a powder when it dissipates in the water.
normal? excessive?
thoughts anyone??

 

[wrassecal]

It sounds normal to me. I use a mag float to clean it off mine every couple of days. You could add a few turbos/astrias or other snails that like to clean the glass and it might cut down on it some. I don't clean it off the back, my snails, lawnmower blenny and coral beauty do it for me.

 

[squidd]

Sounds normal...At least I hope it is...cause thats how MY tank is.

 

[dzones]

oh ok good then.
I have just heard of some people on here who only do that like once a week and I thought I must be doing something wrong to have so much of it. but if it's fairly normal than i am cool with that.
Thaks for the replies.
Dave