OK this is just a thought..... I was wondering if anyone out there has done this? I am planning a hood for a 75G and thinking of 175 MH with actinic supplement but debating on the fixture for the supplement. so while feeding the fish tonight I saw my 36" dual orbit with 2 96W PC bulbs. so this made me wonder.....how difficult would it be to disassemble this thing and use the ballast, sockets and moonlights for a 75???? I know the lights would be a foot shorter than the 75 tank but if you center them in the hood they are only 6" shy on both sides so how much of an issue is that??? to me not a whole lot????? give me your thoughts??