I have a 150 tank and I'm about to upgrade the lighting. I want enough light to have corals and I currently only have about 100 watts of flourence lighting which i know is not nearly enough. I'm looking at installing 3 250 watt 12,000 K metal halides and was wanting to know if this was going to be enough lighting. I currently only have 3 fish and a some mushrooms. Tell me what you think please.