thanks guys I guess I'm going to stick with the 3x250w plan
I'm making the move into my new house next week so I'll be setting up the 100 gal soon after.
what are your tank specs ( L? W? H? )
I am asking because I have a 100 gal long (72") that I am setting up as a reef. I am trying to decide if I want 2x400w MH
or 3x250 MH
thanks :D