when i first started my 150 reef, i had 300 watts of white VHO
, and about 150 actinic. because of a small fire in the hood, i upgraded to Metal Halides. In my 5 ft. long tank, I have 3 -250 watt 10,000K with 300 watts actinic. the light now seems much brighter and whiter than the old setup which gave a nice blue sheen. I want that sheen back so I think changing hte bulbs to 12,000K (250watt) will do the trick. Is my information correct and are 12,000K bulbs as good as 10,000K concerning hte health of the corals?? Please advise before I do something rash....