well i'm no expert , i started with the same lights, and they were good, but i found that there was a whole lot of stuff i couldn't put in my reef, i kept the vho's for three years, and i lost quite a few corals, i was still learning. i started doing alot of home work to find out what corals needed what light,
Bang Guy, can help you better than i can on this matter,
plus there are several, several,people out there that can help you.
i know you can't keep hard stoney corals, and no clams, and most anemones, with vho's.
i went to mh's and now all my corals look healthy and happy.
i'll send you a before and after picture.
but if you have a chance to be able to switch your lighting and you want to have a reef, your best bet is to go with MH's. i wish you luck, and maybe someone else can give you better info.
tonya