well it was cycled<, i have had the first 50 pounds for about 4 months. the 50 pounds i put in there today was cured but I still may get a minspike dont know yet but i put all my fish in the 38g QT
Go big! get more but not too much IMO, there may be some merit to the theory of too much.
How do you like it? I like the full look myself. If it were me, about 25 more should do it. If SPS interests you, getting it closer to the light will only help.